Well, I see your confusion – how to choose the best metal detector among those thousands models of already existing ones? How much it is ok to pay for it – 20, 100, 1000 or 5000 dollars? So, if you’ve decided to buy a best metal detector but the problem is which one to choose – here you’ll get the answers to all your questions.
This article will surely provide you with the most popular metal detector reviews both for beginners, amateurs and professionals.
Here you’ll find out about downsides and advantages, technical characteristics, detecting features and peculiarities of modern metal detector models.
Besides all above mentioned in our metal detectors guide we have answers to the following frequently asked questions:
- What kind of metal detector performs best?
- What is the best metal detector for a beginner?
- What is the best metal detector for gold?
- What is the most important when searching for treasures?
- How deep a metal detector can detect?
- Who makes the best metal detector?
- What is discrimination about?
- What does depth of detection influence on?
- What is ground balance for?
- What is the best metal detector for the beach?
- In what way does a pinpoint function make treasure hunters’ job easier?
- What is an MD detection rate and what parameters it affects?
- How do mono- and DD coil differ and which is better?
- 1 The best metal detectors
- 2 Metal detector reviews
- 3 Best metal detectors for the beginners
- 4 Best metal detectors for amateur treasure hunters
- 4.1 Garrett AT Pro this in an “amphibia” for beach hunting
- 4.2 New Garrett AT MAX the best all-terrain metal detector manufactured in 2017
- 4.3 Fisher F75 the best metal detector to work on a littery ground
- 4.4 GARRETT ACE 400 the upgraded classical metal detector
- 4.5 Garrett AT Gold a best metal detector for gold and jewelry hunting
- 5 Best metal detectors for professionals
- 5.1 Minelab CTX3030 a best metal detector with GPS and 28 operation frequencies
- 5.2 White's Spectra V3i a metal detector with three operation frequencies at the same time
- 5.3 XP DEUS Wireless Metal Detector is an optimal choice
- 5.4 MINELAB E-Trac – a metal detector that searches at 28 frequencies simultaneously
- 5.5 Nokta Impact is the newest metal detector model introduced on the market in 2017
- 5.6 White's MXSport is a multifunctional MD model, that appeared on the market in 2016
- 6 Who makes the best metal detector?
- 7 The most common pitfalls
- 8 Main features of a metal detector
- 8.1 Discrimination
- 8.2 Depth of searching
- 8.3 Target identification
- 8.4 Ground balance
- 8.5 Pinpoint
- 8.6 The number of operational frequencies and their values
- 8.7 The number of functions and user-friendly design of a metal detector
- 8.8 Metal detector with damp proof coil
- 8.9 A metal detector price
- 9 Coils
The best metal detectors
It is difficult to choose the best device among the number of high quality ones. However, I feel that there is an optimal model (as for price-quality ratio) within each price bracket.
I do recommend buying Garrett AT Max as a semi-professional device for treasure hunting.
XP DEUS – this is the best metal detector among MD for professionals.
Minelab CTX 3030 – simple the best.
Minelab CTX 3030 – Complete Review
Metal detector reviews
All best metal detectors can be nominally divided into three classes: for beginners, semi-pro devices and those designed for professionals. We’ll overview the most popular models. Starting from the simplest and moving to more complicated ones.
Best metal detectors for the beginners
So, you need an entry-level device if you speculate as follows:
I consider treasure hunting as insignificant, but interesting hobby to spend my weekend. It involves taking a nature hike, communication with fellow-thinkers and getting some positive emotions. Possibly I will go treasure hunting for about 5-6 times a season or seldom look for nickels, dimes and pennies in the fields around. The main task of my metal detector is just to to perform properly and find targets. I don’t want to make any complicated adjustments; I just want to get maximum of user-friendliness and simplicity from the device.
Minelab GO-FIND 60 – the best compact size metal detector
This one will do for both the beginners and those who want to get a small sized device that can be always with you, for example, in a car.
MINELAB Go-Find 60 – is the newest device and it is highly likely that future Minelab models will inherit quite a lot from it. The product line is represented by three metal detectors – Go-Find 20, Go-Find 40 and Go-Find 60. Since Go-Find 60 is the most sophisticated and highly productive one, let’s begin with reviewing it first.
Once again, the device’s main merit is its small size. It is has telescopic design and looks like a spinning rod, but this time for treasure hunting and not for fishing. The length of this MD in a stowed position is just 22 inches, therefore it can be easily put in your car trunk, in a small rucksack, bag and so on.
The case and sliding components – a shaft and an arm rest – all of these are made of high quality durable plastic, which have provided keen and tough competition to metal constructions we’ve got used to.
- Retracting detector with simple 1-button press/Length to suit everyone in the family
- Powered by 4 x AA batteries/Intuitive user interface
- One button selects target types/Effortless touch button design
- Green LEDs indicate non-iron metal (e.g.. silver or gold) Red LEDs indicate iron target (nail) [GO-FIND 40 & 60 only]
- Visual icon flashes detected target/High tone for high value metal target Low tone for iron target
Go-Find 60 weighs 2.4 pounds, it is very light weighted. This is an MD-transformer and you need just several seconds to get it ready to work.
The coil is rectangular with rounded corners, it looks rather unusual and it has highly consistent performance – due to its shape it is impossible to miss any spots when scanning the land area.
The device case is made of high endurance and wearproof plastic, providing that the device is properly used it doesn’t require any additional protection accessories.
The coil of MINELAB Go-Find 60 is completely waterproof and it can be put under water (but just the coil, not the MD itself!).
The obvious advantage of this metal detector is that the cable connected to the coil is hidden into the shaft and it won’t hook onto bushes when using the device.
The fact that the coil can’t be dismounted and you can’t replace it with another one is definitely a sufficient demerit of the MD.
Its display is highly informative and user-friendly. On the upper side of the display there is an adjustable discrimination scale that consists of just four pictograms with easy to understand target images peculiar to each segment.
Adjustment of the discrimination level is the most important thing in any metal detector setting. Here you just have to push the button several times to exclude some targets from the searching process or, on the contrary, to make the device sense them again.
Below the discrimination scale there are pictograms and scales of some additional functions. The user may turn them off or on, or set the proper level.
The metal detector allows turning on the display light, adjusting the device sensitivity level, monitoring information about the target depth, battery charge level, making audio signal level higher or lower.
The fact that MINELAB Go-Find 60 model has Bluetooth function is a cherry on top of all above mentioned. This function lets you by means of a special mobile app transfer information about your findings to a smart phone.
- Small size. In a stowed position the device takes up minimum space both in a rucksack and in a car trunk.
- Light weighted. New advanced materials allow minimizing the device's weight
- Waterproof coil. Nothing keeps you from beach hunting as well as searching along river and lake shores
- Synchronization. Ability to connect the device to your smart phone
- Not dismountable coil
- Using of plastic instead of metal makes the device design lightweight at the same time making it more fragile
- The arm rest is not very convenient, since you can lay your arm there only if it's fixed with a strap
Garrett Асе 250 - is like АК-47 among metal detectors
Garrett ACE 250 is an improved ACE 150 model. This reliable, easy in mastering device has a strong presence among modern metal detectors. It is a legend among treasure hunters.
It was Garrett ACE 250 that was used by a lot of contemporary treasure hunting professionals at the beginning of their career and they still like this device.
Considering price-quality ratio it is no surprise that this metal detector has been overdemanded. Both the beginners and those who can't afford buying more expensive and sophisticated device enjoy using it.
Garrett ACE 250 will do for searching both small and large targets, its operating frequency is 6,5 kHz, which is a compromise between low (high searching depth, but less sensitivity to small targets) and high frequencies (less deep, but more sensitive to small targets).
Searching depth stated by the manufacturer – for a coin it's 10 inches, for large target – 20 inches. From my experience of using ACE 250 I'd like to add that these values can be improved. To a large extent they depend on a soil parameters in some specific area as well as on how a target is located towards the metal detector (flatside or edgewise) and on the soil oxidation level.
- World's Best Selling Metal Detector the ACE 250 - NEW IN BOX!
- Waterproof Searchcoil
- Garrett ClearSound Headphones
- Padded Arm Support, Batteries included plus DVD and access to online training videos
- 2 Year Warranty!
The software (it has 5 modes) allows you to turn of any unnecessary segments on discrimination scale and save these settings into the device memory. As for the discriminator scale now it has 12 segments instead of 5, which ensures more efficient operation.
At that, for example, you can turn off the discrimination scale segments both for targets made of low and high conductivity metals. “Custom” mode will help you to save discrimination scale settings when the device is off.
The beginners will appreciate symbols put above the discrimination scale to depict the most typical targets for certain segments. There are 4 pre-set searching modes: coins, relics, jewelry and all metal.
The indicator of a target depth now has 4 values – 2, 4, 6, 8 + inches. The device sensitivity can be set within 1 to 8 range, which improves your ability to adjust it to certain searching conditions.
Pin-Point is another important function that was added as well. This is the mode you use to define a target location precisely, which significantly reduces searching time and helps beginners not to damage the target when digging it out.
Target sound identification has three tones. The device has an embedded speaker and a plug-connection for head-phones.
- Easy in use
- Light weight
- Pinpoint mode
- Fast response to a target found (you will pass through large search areas rather quickly)
- Sensitive to cold
- The coil gets scratched rather fast
- Sometimes some background noise appears
- Small searching depth
- No adjustment of audio signal
FISHER F22 the best metal detector for beach hunting for the beginners
Fisher F22 metal detector was a long-awaited product in 2015. The device is easy to master both for beginners and experienced users, because F22 doesn't have any complicated adjustments and settings – it is simple, functional, multi-purpose, high-quality and affordable metal detector.
Its waterproof case allows searching even when it's raining. The device has 9" concentric mono coil, pinpoint function and large LCD-display with VDI, and discrimination scale consisting of 9 segments.
Fisher F22 is the 1st weatherproof metal detector. What does weatherproof mean? Engineers in Fisher research labs have made the device control unit waterproof. Now it is protected from dust and water ingress. By contrast, other metal detector models eventually encounter some troubles due to dirt, water and dust ingress into conducting parts. However, providing that the device has a waterproof case all these issues can be avoided and thus the metal detector durability can become several-folds longer.
Another new feature of Fisher F22 is that it needs just two AA batteries to function. Low energy consumption has become possible due to using of more energy efficient microchips in the device scheme. Supplied with two alkaline batteries this metal detector is capable of functioning up to 30 hours! Such operation duration can't be reached by lots of devices made by famous brands.
Fisher F22 control unit is equipped with a large LCD-display. All signs and pictograms are clearly seen, therefore you don't waste your time while searching to get what is displayed or indicated.
- For detecting coins, jewelry, and artifacts
- Features pinpoint mode
- 10 adjustable sensitivity levels
- Weather resistant
- Detects metals up to 9 in. deep
Above VDI number you'll see the 9 segment discriminator scale and it stretches along the display full width. By switching of one or another segment you can set the metal detector to search for some specific targets.
There is a menu on the left where you can adjust search parameters and perform more accurate setting of the discrimination function. There are two indicators next to the menu list: these are depth and batteries level indicators. Interestingly, the depth-gauge has 3 levels, while the battery charge level has 7 positions.
Fisher F22 scans soil at 7,69 kHz frequency by means of 9 inch concentric coil. F22 is the first in the world production metal detector that has an egg-shaped coil. A scanning beam of such shape is more selective as for adjacent targets, which allows finding valuable things even on a very littery land area.
- Quick response
- Audio level adjustment
- High quality discriminator
- Requires just two AA batteries
- No manual ground balance adjustment
- No backlight
Bounty Hunter Land Ranger PRO the best metal detector for beginners
Land Ranger PRO is a flagship model of professional metal detectors product line BountyHunter. The device has 7 pre-set search modes each of which can be manually adjusted. This is a perfect device for relics, coins and jewelry hunting or any metal you want. A waterproof 11 inch DD coil comes in the device set.
Land Ranger Pro metal detector produced by American company Bounty Hunter uses 6,7 kHz frequency in a dynamical mode. The ground balancing function is performed automatically and the searching can be performed both in discrimination an All metal mode. Besides this metal detector allows adjusting sensitivity and discrimination level.
The control unit has a nice LCD-display by means of which its user can control VDI number for targets found and see some settings as well.
There are several buttons of the control unit. The red one on the left is to turn on/off the device, while the red button in the center is to turn on Pinpoint mode. On the left there are 4 buttons (up and down arrows and «+» and «-»), which are required to adjust some other functions. There are two buttons on the right: Ground Grab and Mode (to choose the mode and adjust it as you need).
Above the display there is a multicolored scale with three sections - orange, yellow and white. Under it, right on the display there is another scale with scale marks. Depending on the type of the detected metal these marks will be filled. To make the process more clear some scale marks have notes: iron, foil, aluminum, zinc. Values 5с, 10с, 25с, 50с, 1$ stand for 5, 10, 25, 50 cents and 1 dollar. Besides, large VDI numbers are displayed as well.
When discrimination mode is on you can see on the display sensitivity level - Sens, audio signal level - Volume, ground balance value - Ground, discrimination level - Disc Level as well as V-Break and Notch Width functions. Though in All Metal mode you'll see only sensitivity, volume and ground balance.
The battery level is always displayed. Depth function is activated only after you find a target and it shows how deep it is located. You should keep in mind that it isn't the distance from the ground level to the target, since this is the one between the coil and the target. The depth-gauge has 5 levels.
You can also use the device both in All Metal and discrimination modes. When All Metal mode is on the metal detector just sees all metals. The discrimination function allows the user to exclude one or several metal types from the search. You can use two different ways to turn on the discrimination function in Land Ranger Pro. The 1st one is to set discrimination level by means of Disc Level. The 2nd one is to use Notch function and to «cut off» a part of the scale with the values you don't need. By the way, the device has a very useful feature to memorize its settings after turning off and on again, which is rather convenient.
- V-Break, Variable Tone Breakpoint
- Pinpoint Mode with Depth Indicator
- FeTone, Adjustable Iron Audio
- Menu System with Variable Notching
- Ground Grab, Computerized Ground Balancing
Bounty Hunter Land Ranger Pro has a standard completely waterproof 11-inch DD-type coil. You can use it for under water hunting, but remember to keep the control unit far from water.
Summary: this metal detector model is a bit unacknowledged on the market, which is rather strange. Considering its rather low price this metal detector characteristics can compete with that of semi-pro devices. Also don't forget that this model was produced in 2014, while ACE-250 - in 2004. This is clearly seen from the device appearance, design and characteristics. I recommend Bounty Hunter Land Ranger PRO as the best metal detector for the beginners – it is an ideal combination of price and functions.
- Fast target response
- 7 modes of search
- Memorizes settings and when the device is off all of them (except ground balance) are saved into the device's memory
- Sufficient depth
- Large display
- All modes perform properly
- Sufficient ground balancing function
- Fragile plug-connector for a coil
- 9 volt battery
- No Noise Cancel function
- No protective case for control unit
Best metal detectors for amateur treasure hunters
You require an MD of middle level if you speculate as follows:
I take seriously everything I do and I've got used to work with quality equipment. I'm a demanding user. At that I'm aware of the fact that this is a very exciting hobby, so I have free time and money for it. I'll go treasure hunting quite often. However, I'm not completely keen on all this stuff, I'm just an ordinary man that likes good devices and appreciates combination of reasonable price and corresponding properties of the goods I buy. Therefore, I'm buying a metal detector and expect I won't have to buy another one soon if I want a more powerful device.
Garrett AT Pro this in an “amphibia” for beach hunting
Garrett AT Pro is a multi-purpose metal detector of semi-pro class and it is perfect for coin, jewelry and gold hunting in highly alkaline soils and on ocean beach.
The basic difference of Garret AT PRO when compared to other professional detectors is the possibility to put it whole under water. It means that you can start your treasure hunting along coastal area of any pond 10-foot depth. This is a multi-purpose amphibia, which means that it is both ground and underwater metal detector at the same time.
The device's coil DD PROformance 8,5" х 11" with operation frequency 15 kHz makes Garrett AT Pro International a professional metal detector when hunting for small targets. The device is designed exactly for small stuff hunting, that's why it can be called almost ideal metal detector for beach hunting.
Of course, it can be used for larger targets hunting, but not so deep in the ground, as other devices of its class can search for.
- Includes Garrett AT PRO Metal Detector, Pro Pointer AT Waterproof PinPointer, Garrett 8.5" x 11" DD Coil Cover, Garrett Mastersound Headphones, Garrett Diggers Pouch, Garrett Edge Digger, Garrett Digital Garrett Camouflage Soft Case
- Pro Mode AudioTM: Proportional Audio and Tone Roll AudioTM features allow the user to hear characteristics of a target as they would in a True All-Metal Mode. High-Res Iron DiscriminationTM: Use touchpads to set iron discrimination in one of 40 levels for precise ability to separate good targets from trash.
- Digital Target ID: 0 to 99 Target ID scale offers increased ability to distinguish one target's conductivity from another. Iron AudioTM: Allows the user to hear discriminated iron and to alter the detector's mid-tone signal's range
- Fast Recovery Speed: Allows greater ability to pick out good targets amongst trash All Terrain Versatility: Weatherproof housing designed for dusty, humid or wet environments; unit can be submerged to a maximum 10-foot depth. 15 kHz frequency: improved detection of small targets, gold nuggets, jewelry
- Ground Balance: automatic and manually adjustable for improved performance Graphic Target AnalyzerTM (GTA): identifies target's conductivity Continuous Coin Depth Indicator: to determine target depth Battery Condition Indicator: shows battery life continually
Moreover, please keep in mind that hunting under water requires using special headphones designed just for this model of metal detector. Using manual and automatic ground balancing modes make treasure hunting with Garrett AT Pro International more efficient on complex soils or highly alkaline fields.
Using PinPoint mode together with a new DD PROformance coil gives possibility of accurate defining of even the smallest target location.
- Multi-purpose device that can work both on the ground and under water
- Good for beach hunting
- Suitable for highly alkaline soils
- Its operation frequency allows searching for small targets (jewelry lost on the beach, for example)
- Low price for the functions available
- Dust and waterproof
- The device may not work properly in brackish water, it requires manual adjustment for this
- Plug-connectors are rather inconvenient to use
- Batteries discharge quite fast
- No backlight
New Garrett AT MAX the best all-terrain metal detector manufactured in 2017
This new model was designed for professional treasure hunters and it combines all the best features of AT PRO and AT GOLD since this device continues the product line. Actually, it really is an AT PRO metal detector, but this is its improved and upgraded version.
What makes Garrett AT MAX different if compared with AT Pro:
- Increased search depth
- Built-in wireless Z-lynk unit — allows using new wireless headphones Garrett MS-3
- Improved automatic ground balance function
- Adjustable threshold
- Backlight was added
- Improved grip, it doesn't slide and get worn out
- Operation frequency 13.6 kHz
Garrett AT MAX is an amphibian metal detector and that’s why its headphones and coil connectors, control buttons and battery unit lid are protected from possible moisture ingress. Due to this you can easily go coin and jewelry hunting up to 3 meters deep under water. Rain, dust, dirt and even snow are not a problem at all for this metal detector.
The headphones use wireless Z-lynk technology – it has no transmission delay and it is several times faster than Bluetooth devices. Wireless headphones are not just convenient to use, but they also provide more accurate target response.
The device search depth was improved due to its power increase and using of improved electronic components. Therefore, even when you go metal detecting around popular treasure hunting sites, there are high chances that you’ll find valuable targets others have missed.
Optimized 13,6 kHz operation frequency ensures detecting even tiny objects including coins, relics and even gold nuggets, though the device isn’t classified as a specialized cold prospecting metal detector. It is possible to shift the operation frequency that’s why interference from other devices or transmitting lines won’t affect the MD efficiency in any way.
- Garrett MS-3TM Z-Lynk Wireless Headphones included
- Backlight: Illuminates LCD screen for improved visibility in low-light situations.
- Adjustable Threshold
- Automatic Ground Balance Window
- True All Metal Mode
Adjustable manual and automatic ground balance function allows treasure hunting on soils with high mineralization level and on saltwater beaches as well.
Scalable threshold provides more precise information about the target found.
The shaft can be customized to user’s height; the MD weight 3.03 lbs (1.4 kgs) ensures long term treasure hunting without getting tired. A standard 8.5" x 11" DD coil comes in the device set. It can be used for fast area reconnaissance as well as for speedy metal detection process.
- 2 years warranty
- Target ID graphic scale has a digital cursor
- 2 display modes – standard mode and VDI
- 40 segment discrimination cursor
- You can put the device under water
- MS-3 Wireless Headphones come in the device set. They have embedded Z-Lynk unit
- The device uses 4 АА batteries
- We have no information yet
Fisher F75 the best metal detector to work on a littery ground
The main benefit Fisher F75 metal detector can offer to the user is its proper operation around littered with rubbish areas.
The device contains all the newest functions from a discriminator with double filtration to an automatic ground tracking FAST GRAB. This metal detector is an advanced level one and it can't be recommended to the beginners, since they may just waste their time trying to adjust the device settings.
Fisher F75 productivity directly depends on whether its user has learned to work with the device properly. This metal detector is famous for its perfect sensitivity to small targets (such as coins) and superb results when being used on a littered with metal-containing rubbish ground as well as on soils with excessive mineralization.
The device's main operation frequency is 13 kHz which is one of the reasons why it's sensitive to small objects.
While constructing Fisher F75 a greater focus was placed to lessen issues that arise as a result of soil mineralization. It is very convenient that this device shows on the display information about soil mineralization in the real time scale.
The metal detector has three searching modes, though experienced treasure hunters prefer All Metal, because it provides the largest searching depth. You can adjust ground balance both manually and automatically. When turning he device on and off it saves the latest settings.
- Lightest weight / best ergonomics in the industry - powerful performance trigger-actuated target pinpointing with variable audio pitch - large lcd screen with 0-99 numeric target identification display
- Double-filter discrimination modes for searching in trashy areas - magnetic mineralization bar graph and readout - trigger-actuated fastgrabTM ground balance
- Non-volatile memory saves settings - backlight - for low light hunting conditions - low operating cost - typically 40+ hours with 4-aa alkaline batteries
- Double-D Waterproof Search Coil - Rain Cover for Control Housing & Battery Housing Available
- Recommended for: coin shooting, relic hunting, beach hunting, gold prospecting
The metal detector has an attractive function to define soil structure damage. In other words, the structure of the ground where something is hidden or covered up with soil should differ from the other ground in the area. This way the chances of finding a treasure get higher.
Fisher F75 has 11х7 inches waterproof DD Bi-Axial coil, using which you can go beach hunting, searching in salty sand, in streams and not very deep ponds as well as in sea soundings. The coil will let you search deep and sense targets which are next to you quite well regardless of a soil type, even if it is a highly mineralized one.
The device has solid S-shaped shaft that consist of three components. Stiffness of the metal detector structure is provided by collet clamps and it is balanced due to the control unit (with four AA batteries) placed under the armrest.
Such ergonomic design gives you the feeling that you are holding a very lightweight device and you'll be able to go for long treasure hunting with it.
- Prefect discrimination function
- 13khz operation frequency
- Light weight
- Lots of settings and options
- Suitable for small coins searching
- Perfect for hunting around littered areas
- Sufficient depth
- Low energy consumption
- Very quick target response
- It is difficult to master this metal detector for the beginners, especially if they used to have ACE 250
- The device's audio sound is rather loud and it may annoy you
GARRETT ACE 400 the upgraded classical metal detector
Garrett Ace 400 is a recent development made by Garrett in 2016. Actually, this device is just more sophisticated replacement for Ace 350 metal detector. ACE 400 can be used as a multi-task metal detector for any type of hunting: relics (coins, artifacts), treasures, gold jewelry on beaches, war booty in forests.
The main feature that makes this device differ from previous models is VDI number on the monitor, possibility to shift operation frequency, widened iron range and adjustment of audion signal volume for iron targets.
VDI number indicator (Target ID) is the most crucial improvement of the upgraded metal detector. Target identification has become easier and more accurate, because now the user is guided not only by the scale segments, but also by VDI numbers displayed.
Digital discrimination scale from 1 to 99 is divided into 12 segments. Another segment for iron was added and now there are four of them. You can exclude only one specific sector from search. When using renewed Garrett Ace 400 iron-containing rubbish isn't the issue any more!
IronAudio option will help you to see between valuable targets and beer cans, caps and so on. This Garrett AT Pro function has proved itself as a highly useful one and it is widely used mostly for beach hunting.
Garrett Ace 400 is equipped with a DD coil, 8,5x11". This type of sensor is well known and it has demonstrated all its downsides and benefits when being used on the previous Ace 350 model of the device. The coil really deserves a credit! Quick target response, perfect differentiation of metals (non-iron/iron), total absence of "blind spots" as well as excellent coverage (in two sweeps it covers more than 20 inches area).
All these are the advantages that make this device much more preferable among other metal detectors! We also should mention that the coil shows good efficiency on all soil types including mineralized and alkaline ones as well as it is a weatherproof one!
- Light weighted
- Powerful coil
- It is possible to put the coil under water
- Small target search was improved
- Efficient on littered ground – detects metal-containing rubbish easily
- Long-lasting off-line operation
- A spring is a battery section is the device soft spot
- Small display
- This product line itself is outmoded
Garrett AT Gold a best metal detector for gold and jewelry hunting
This is a twin-brother of AT-Pro metal detector, but with another operation frequency. Garrett has designed AT Gold specially for gold nuggets and jewelry hunting both on the ground and under water. Unlike AT-Pro, Garrett AT Gold has a smaller coil — DD 5×8″ and higher operating frequency – 18 kHz.
Due to these the device is very sensitive to small targets: pieces of gold, jewelry, silver and copper coins. Except gold this metal detector excellently senses silver coins.
- Water Proof (10ft) All Terrain Metal Detector
Garrett AT Gold is very easy-to-use. It can be quickly assembled and dismantled, at that the shaft components are connected more reliably than that of AT Pro model – there is almost no black lash in the junctions. Due to the proper location of the control unit it is very convenient to use the device with one hand.
Batteries are installed and replaced by means of a replacement module – a cassette where four AA batteries are put. The batteries section is waterproof just like the whole control unit.
The fact that Garrett At Gold case is a waterproof one is a very strong benefit which allows hunting both on the ground and in water (up to 10 feet deep). Metal detector Garrett At Gold waterproofness not just for underwater hunting, but for hunting under some extreme conditions. The device is completely ok with rain, fog, dirt, dust – therefore you can go treasure hunting at any conditions and weather and have no worries if your metal detector can stand the loads!
- Aimed to search gold
- Quick response
- No sound adjustment on the control unit
Best metal detectors for professionals
You require the most modern metal detector if you speculate as follows:
I am a professional and whatever I do I try to do it diligently. I can afford buying a really high quality MD. Treasure hunting is a super hobby which I'm obsessed with and this is my lifestyle! I spend (or I will spend) a lot of time traveling for treasure hunting and a metal detector for me is the most crucial device just like a gun for a true hunter. Each additional inch of the depth as well as are essential to me!
Minelab CTX3030 a best metal detector with GPS and 28 operation frequencies
Minelab CTX 3030 was a long-awaited device of 2012. It is 2018 now, but the functionality this metal detector provides can easily compete with those newly-designed devices of 2016.
Minelab CTX 3030 is designed for relics hunting at any weather conditions and on any soil type as well as under water (up to 10 feet deep). This metal detector has the newest equipment even for nowadays. This device is the only one that has GPS unit integrated with Google Maps. Not a single manufacturing company in the world was able to install GPS into its metal detector. Therefore, GPS navigation is a strong benefit of this device especially when hunting on some unfamiliar area.
For example, if you've been digging out some target, but haven't finished and came back in a year. Surely, you won't exactly remember where it was, especially if some new plants/trees appeared there or the landscape has changed. GPS navigation is here to help you! You'll easily find that very spot where you were digging last time.
- Free Minelab Gloves, Carrybag, Wireless Module & Headphones
- Waterproof Go detecting anywhere with this versatile TREASURE detector the CTX 3030 is waterproof to 10 ft. (3 m)
- GPS Locating See where you have been and where you are going, by using the Map screen and Navigation Tool PC Mapping (with Google Maps) Upload all of your detector settings and treasure locations to your PC using the Exchange 2 application
- Wireless Audio Have the freedom to detect without your headphones being attached to your detector with the choice of built-in speaker or headphones
- FBS 2 Technology uses multiple frequency transmission and coil-to-detector data communication to find more targets in variable ground conditions
This function with the help of Google Maps and PC XChange 2 displays on your PC the spot, where each target was found. At home when looking through your root you'll be able to see which area you've missed.
This is the first time when a color LCD-display was installed on Minelab metal detector. The image on the display can be clearly seen even if the sun is shining brightly.
The improved multi-frequency FBS2 technology has become more efficient. The metal detector performs searching at 28 frequencies simultaneously in the range from 1,5 to 100 kHz. This gives an ability to work on highly mineralized soils, where one-frequency metal detectors are useless. Due to this technology the device shows sufficient results both for small and large targets; it maintains the same searching depth even on complex soils.
The upgraded technology of target identification – Smart Find 2 — now the target is detected not only according to its conductivity, but its inductivity as well. This allows more precise defining of the target type (non-ferrous or ferrous metal), its size and depth. Now apart from displaying the object, when moving the coil above it the image gets animated.
The device ranges targets found according two parameters: iron content and conductivity. CTX 3030 user can set discrimination masks – this way the metal detector will find only targets with these set inductivity and iron content values.
The device has 10 search modes: 5 modes have pre-set ground balance and Fe-Co settings.
- Mode 1 — coins;
- Mode 2 — beach;
- Mode 3 — relics;
- Mode 4 — silver;
- Mode 5 — high level of litter
All these make the device very easy-to-use for those who see it for the first time. The user can choose the appropriate mode and start treasure hunting straight away.
As for modes 6, 7, 8 and 9, 10 – these are for professionals and they can be adjusted as it is required. For example, you can set the device response, target separation, sea water level (for beach hunting) and salt level (for soils), litter level and lots more. In case if the result of your manual adjustment doesn't satisfy you and you don't remember the initial settings, you can roll them back to manufacturer's default ones.
This metal detector has two adjustment modes:
Manual. A user manually adjusts the device to operate where the soil is uniform and this provides hunting at maximum depth.
Automatic mode — is used to adjust the device automatically when hunting on complex soils where searching conditions vary.
As for the device disadvantages – the batteries discharge very fast, if you aren't using accumulators. Eight batteries get discharged during day light when you search without using any additional functionals, GPS and other embedded stuff.
Another sufficient drawback is the device's weight (5,2 pounds). However, its manufacturer's concentrated the main load on accumulator therefore it is the heaviest.
We should also point out another demerit – it'd be difficult for the beginner to master the device and get its maximum performance. He'd have to use just standard modes.
- High depth of target detecting
- Vey good system of target separation
- GPS navigation
- Wireless transfer of audio signal
- Full-color display
- Tracking roots on the map using PC
- Functionality: target tracking, inductivity analysis, GPS-unit, synchronization with a PC, amphibia. The device can be used both in the water and on the fround
- Package contents: cool head-phones, WiFi-unit, accumulator and power supply unit
- Complicated adjustment
- High power consumption (batteries discharge fast)
- Though the device is aimed to work under water, the depth shouldn't exceed 10 feet
- Not a lightweight device, but among multi-frequency metal detectors it's definitely not the heaviest one
- Requires professional adjustment, thoughtful approach, diligence, a desire to get into all details. Although the device's interface is quite user-friendly
- Accessories, spare parts and coils price corresponds to the one of the device
White's Spectra V3i a metal detector with three operation frequencies at the same time
Whites Spectra V3I is a three frequencies metal detector produced in this modification by Whites company in 2010. The device performs using three frequencies - 2,5; 7,5 and 22,5 kHz; they can be used simultaneously and separately.
Whites Spectra Vision V3i can surely be considered on of the best metal detectors. It is equipped with a color display that shows information about the device performance and about these three frequencies as well. By means of a special program it displays data about the target found and the level of all three frequencies.
The device's menu has 6 units with a user-friendly interface that ensures fast settings adjustment and start of treasure hunting. Sensitivity, discrimination, ground balance and audio signal are easily adjusted using the menu. The display has backlight and you can choose one from 20 brightness levels.
This metal detector has several different search modes: Coin, Coin and Jewelry, Deep Silver, High Trash. In Hi-Pro mode the level of trash dropping (using audio signal) is the lowest. The target is defined using the display, because the signal is very powerful.
In Meteorite mode the device recognizes nickel and ferriferrous meteorite using the negative VDI numbers. At that the majority of other targets is discriminated. Mixed Mode Pro mode allows combining of audio discrimination adjustment with “All Metal” having Hi Pro parameters. This mode will perfectly suit for archaeological hunting.
- HD Color Display - with adjustable backlight
- Spectra sound - wireless headphones
- 10 Turn-on-and-go Hunting Programs
- Multi-Frequency Detection; Standard Coil 10″ (DD).
- Model Number: 800-0329-HP
This metal detector has three operation frequencies and it can use either each of them separately, or all three of them at the same time. This depends on the selected search mode and settings.
The device uses the following frequencies: 2.5 kHz for high conductivity metals (copper or silver, for example); 7.5 kHz is used only in “All Metal” mode; as for 22.5 kHz frequency it is
used for efficient search of low conductivity metals and small targets ( gold, nickel).
The metal detector has 10 inch double coil, that allows scanning large area and exclude the soil mineralization influence. You can input personal and contact data of the device owner using the menu and protect them with a password.
The device can choose filtration level itself and it has 8 values in the range of 9-12,5 Hz. Accepted and canceled targets are marked on the display with green and red color correspondingly. Signal that comes from the target is processed by the device with a speed that has 200 values.
Eight rechargeable NiMh-batteries are the source of power for the metal detector.
The device operates according to VLF scheme. Salts compensator function lets automatically select the most appropriate work frequency according to the soil conditions. It eliminates influence of salt conductivity when beach hunting or alkali when working in a desert.
Completely assembled and ready to work Whites Spectra Vision V3i weighs just 3.5 pounds. The device set has 10 inch DD coil, wireless head-phones and manual in it, except the metal detector itself consisting of a shaft, control unit and mountings.
Whites Spectra Vision V3i has a wireless data transfer system using BlueTooth. Now you don't have to think about swinging head-phones wires – because with Spectra V3i you can use wireless BlueTooth head-phones. Also you can connect the device to another one ( to exchange the programs) or to PC (using USB or BlueTooth).
However, Whites engineers decided to leave a standard plug-in for head-phones and an embedded speaker in the device.
- Three operation frequencies that can be simultaneously used - 2.5kHz, 7.5 kHz, 22.5 kHz
- Possible to use one single frequency
- Color display
- Wireless head-phones
- Batteries get recharged very fast
XP DEUS Wireless Metal Detector is an optimal choice
A professional metal detector XP Deus with 9 inch coil is made using modern wireless connection technology. The control unit, head-phones and the coil of XP Deus are connected with each other by means of wireless technology.
This is a huge convenience when searching – no wires, they don't cling to anything and you aren't afraid to tear the wire from the coil, which sometimes happens with other devices. XP Deus has outstanding search characteristics. At rather sufficient depth it separates the targets rather clearly.
- Fully Wireless Metal Detector with full WS5 Headphones + controller
- Lightweight 2 pounds. Swing all day without getting tired.
- 11 inch Double D Coil. Covers more ground. Coil is fully submersible in water.
- Always up to date with the newest features. Use your PC to update your DEUS. Easy step by step instructions.
- Modern collapsible shaft and stem allows for pack and go portability.
To work in complicated conditions of highly mineralized soil use the ground balancing function that can be set in several modes (tracing, superficial search and manual adjustment).
The device uses one of 4 frequencies (4 kHz, 8 kHz, 12 kHz, 18 kHz), which provides to define targets of different size at the device depth limit with high precision. Though they don't work simultaneously – its only one frequency of the four possible chosen by the user.
Хр Deus is as light weight as possible (it weighs 2,14 pounds), which means that the device is very convenient in use. Since we all know how hard it is to sweep with any other device and then your hand starts aching. Now these issues are settled and you can enjoy using this metal detector.
Deus is quickly assembled and dismantled and at that there is no chance of loosing or breakage of any device's components. The metal detector has embedded batteries with at least 2 years term of service and then you should replace them with new ones. The batteries high capacity ensures very long service term without recharging.
Summary: XP DEUS – is a very interesting detector and you decidedly should buy it, if you have a chance. The device requires serious and thoughtful approach. The device has lots of features all you need is to learn how to use them properly.
All these unique characteristics make XP Deus the best professional metal detector nowadays. Taking into account the perfect quality of the materials and assembly ( made in France) this device leaves its rivals far behind.
- 4 frequencies
- Wireless technology
- Software is constantly upgraded
- Large number of accessories
- No drawbacks. Except that for the beginners the device is hard to master
MINELAB E-Trac – a metal detector that searches at 28 frequencies simultaneously
E-Trac is one of the best metal detectors nowadays. It is a multi-task device that is suitable both for small and large targets hunting regardless of their depth and the level of soul mineralization. Not every metal detector can offer such operation efficiency.
First of all, E-Trac is a metal detector that is designed using full band spectrum technology (FBS), that allows the device work without any troubles on any type of soil – it has almost no false alarms.
Due to FBS technology the coil sends to the metal detector several responses that correspond to different frequencies. As a result the device's microprocessor obtains more information about the target and more accurately identifies it.
Minelab is known to develop outstanding technologies and the unique FBS technology is one of them. It allows sufficient enhance the metal detector sensitivity, depth and accuracy of targets location.
Just imagine – the device's coil simultaneously emits pulses at 28 frequencies in a very short time (several milliseconds)! This way the metal detector electronics sort of touches with “invisible hands” the target located under ground by means of frequencies with different amplitudes.
Therefore, basing on the data obtained from each frequency E-Trac metal detector can precisely identify conductivity and inductivity of the target!
E-Trac as a professional metal detector has the world's best discriminator, because it uses two physical properties of the metal to define its type – conductivity and inductivity; this data is then shown as a graph on the device's display.
- Includes: Minelab 11" DD Coil Cover Minelab E-Trac Instruction Manual Minelab E-Trac Quick Start Guide USB Connection Detector Stand Armrest Strap Koss Headphones Minelab Alkaline Battery Holder - Uses 8 AA Alkaline Batteries (Not Included) Minelab NiMH Baterry, 1600 mAH Wall Charger for NiMH Battery Minelab Standard 3 Year Warranty
- E-TRAC's advanced signal processing using FBS technology analyzes more target information so that target identification is more accurate
- QuickMask TM with independent ferrous and conductivity rejection level adjust - a fast and simple way to edit patterns
- E-TRAC Exchange USB functionality - create download and upload your favorite E-TRAC settings and save them to your computer or with friends by email
- Ground Setting options of Neutral and Difficult allowing you to adapt easily to benign or the most challenging operating conditions User-centered keypad and menu design - fast and easy to use with intuitive icons and logical menu sequences
USB interface has become another major improvement in E-Trac construction – now it has made it possible to create discrimination masks using PC and then upload them to the metal detector. Successful configurations of search programs with device can now be stored on your computer and you don't have to worry that they'll be lost somehow.
Due to this innovation approach E-Trac is able to exchange its firmware with other E-Trac metal detector owners. All E-Trac sets include a compact disc with branded software from Minelab Xchange.
- Excellent discrimination function
- Simultaneous search at 28 frequencies
- USB connection
- The coil wire is hidden inside the device's shaft
- You should sweep slowly since the response isn't quite fast
- It is rather complicated even for the experienced users to master
Nokta Impact is the newest metal detector model introduced on the market in 2017
The thing is that the market was split into segments by manufacturers long ago, not to mention its top segment, however no new MD models appeared there for over 5 years already.
Nevertheless, a Turkish company boosted the market by producing its flagship MD model - Nokta Impact. Until recently the company was known only within a narrow circle of specialists, fans of ground penetrating radars (GPR). In 2017 the company introduced its third metal detector Nokta Impact, that has a potential to take its place on the market of high quality metal detectors.
About 30 engineers participated in designing of this device and it was tested by lots of experts and users. The most unusual thing is that the company kept communicating with the device users and testers while piloting the MD and shared the feedback and considerations among all of them. In my opinion, this indicates how seriously the manufacturer takes construction of its metal detector.
The device has many merits: its wire is thoughtfully hidden inside the shaft which is very handy, the MD is wireless and it operates quite fast. Another advantage is 3 operation frequencies: 5 kHz, 12 kHz and 20 kHz, that make the device more efficient, as well as its wireless unit for headphones.
The company produces additional coils for Nokta Impact, which you can use on different ground types and for various purposes. This model as well as other Nokta devices has some goodies: such as tap lights (a LED lamp embedded inside the detector unit), vibro-mode – in case if you don’t have headphones and its not desirable to turn on the device volume. This MD requires 4 AA batteries to function and it weighs 4 lbs (1.8 kgs).
- Operating frequency: 5Khz - 14Khz - 20Khz
- Weight: 4 lbs (1.8 Kgs) including search coil and batteries
- Ground balance with 3 options: automatic, Manual, tracking
- Iron Audio (Fe volume): turns off or adjusts the volume of the low iron tone
- Audio tone: changes the frequency of target and Threshold tones (150Hz - 700Hz)
The metal detector menu has 12 search programs: two stable modes, two “all metal” modes and eight other modes with various discrimination (2 tones, 3 tones, 4 tones and 99 – polyphony), complex soils mode (for example, wet salt sand) and deep search mode. The MD ground balance allows selecting manual, automatic and tracking ground balance mode.
- Efficient search depth
- Three detector frequencies 5 kHz, 12 kHz and 20 kHz
- User friendly settings
- The coil has a plastic case
- Two versions of assembly kit
- Two coils come in the MD set (in Pro version)
- Software updates via USB
- Weight - 4 lbs (1.8 kgs)
- There are quite few reviews from the device users
- It is a bit unusual to use it after other MDs
- High rate of a battery discharge
White's MXSport is a multifunctional MD model, that appeared on the market in 2016
It was a sensation in 2016. A multi-purpose waterproof metal detector for standard and under water treasure hunting (up to 100 feet/3 meters deep). The operation frequency of the device is 13,8 kHz, it has 20-tone audio identification plus lots of useful options.
The manufacturer has endeavored to implement modern technologies in this MD design. For example, the device has an extremely powerful processor MX Sport that ensures high recovery speed and search depth both for large and small targets. The latter is a huge competitive advantage over other metal detector models such as E-trac and CTX 3030.
Unlike MXSport they have quite old-fashioned processors and 28 operation frequencies as well. White's MX Sport uses 13,9 kHz operation frequency, i.е. the device deals rather well with large and average sized targets (coins), however, it can also find some smaller targets like jewelry when hunting at the beach. In general, I prefer metal detectors with several operation frequencies, but let’s keep in mind that such MDs cost from 2 to 3 times more.
This metal detector can be put under water up to 10 feet deep. As for the device waterproofness, I’d give 10 out of 10.
All its components and units are perfectly protected from any water ingress, all of them are well-designed. Ground balance can be adjusted both manually and automatically. It has become current practice to include this option for all modern metal detectors.
- 6 Search Modes Automatic Ground Balance with Tracking Backlit Display
- Beach Mode Big bold VDI numbers Coin/Jewelry Mode
- Depth Reading Frequency Control Pinpoint Mode Prospecting Mode
- Relic Mode Salt and Freshwater Target ID Threshold Control
- Tone ID VDI Target Readings Volume Control Waterproof to 10 feet. IP 68 Certified
The device is excellently balanced. This is important, since the MD weighs 4 pounds (1800 grams). Therefore, the device’s perfect balance is exactly what allows neutralizing its weight.
Another feature of this MD is its high recovery speed. It means that MXSport defines targets located close to each other more precisely. This important function is indeed useful when you go treasure hunting in sites with high level of litter.
MXSport has a wide range of sound identification of target. You can turn on one-tone, two-tone, 4-tone, 8-tone and 20-tone acoustic mode. At one-tone mode all targets provide the same sound response, but at 20-tone mode each discrimination segment has its own response sound. At 4-tone identification mode iron target will produce the lowest sound, foil and metal corks sound a bit higher, nickel coins sound higher than foil and corks, though the highest sound will be produced by non-ferrous coins (silver and gold ones).
I assume that 20-tone identification mode will do for users with good ear for music, therefore I prefer 6-8 tone mode – this is quite enough to identify the most common metals.
Besides the MD has VCO function, which provides signal amplification and fidelity when the device’s coil gets closer to a target. When the coil moves aside from the target the signal becomes weaker; correspondingly, the signal becomes clear and loud when the coil is directly above the target center.
Salt Track function enables defining the ground salinity and this way ensures proper ground balance when hunting at wet salt water sand.
Another really useful feature of White's MX Sport metal detector is Rejection Volume function. It is responsible for turning up/down signals from ignored targets (closed by means of discrimination). This means that the user can stop hearing the discriminated objects at his discretion or set the response signal sound on the level that differs from valuable targets response volume.
For example, it may be 20% of valuable targets response volume. Thus, the user clearly sees between rubbish and valuable targets without losing general view of the search process.
A small shift of operation frequency is possible, which is quite helpful in case if some electric noise occurs.
- Related items:
- White's MXSport Waterproof Headphone
- White's UltraLite Large Headphone
- White's DigMaster Digger
- The price
- Waterproofness and ability to search under water
- High speed processor
- Good target determination
- 6 search modes
- VCO function
- The device weight
- One operation frequency
- 8 batteries
Who makes the best metal detector?
Despite the fact that the market is saturated with all kinds of metal detector models, there are just several main rivals and they produce about 80% of all devices.
The most common pitfalls
An expensive device is always better than a cheap one. It is true to some extent, but there are some exceptions as usual. The price of expensive MDs is quite often high at the account of some additional functions and settings, which won't ever be used by beginners.
Therefore, you'll pay for the functions you actually don't need. Even most of experienced metal detector users confess that though they have expensive devices, they hardly ever use all their potential.
Another important factor is that, for instance, for the device that costs $1500 and the one priced $400 the depth of detection of a coin can be just 4-5 inches different! Since, indeed, 90% of all metal detector findings are located within the reach of any name-brand detector of entry-level (a spit deep).
In case of a hoard of gold coins – due to its large size it can also be detected by any cheap device.
Expensive metal detectors should be bought after giving this issue your careful consideration. Only if you do need their additional functions and sensitivity. Inexpensive brand-name devices perform within their main sensitivity range the same as their highly priced rivals.
hese functions, since they can adjust the device properly.
Disregard the device design completely. As for any metal detector – its audio tone is important, not the display. The latter just helps you to get used to the device at first. Most of experienced treasure hunters work with their head-phones on and very rarely they look at the display. Audio information is of more importance when conducting some detection.
The main thing about using a metal detector is experience!
Far more depends on the user: on the place he has chosen, how attentive the user is and again – his experience. During some joint searching competitions those with the simplest and cheapest devices used to find not less, than those using expensive ones. Attentiveness is the case here, the ability to “hear” your device and choose a proper place for searching.
A cheap metal detector doesn't mean a bad one. Any inexpensive device is something in the middle between just toys and professional devices with additional functions and settings.
Such a device has everything that is necessary for successful treasure hunting: sufficient detection depth, discrimination and several audio tones to define the target. So called “happy medium” devices are those that cost from $300 to $600 as a rule.The devices which price is less than $100 can be used just for fun.
Main features of a metal detector
When a beginner treasure hunter (and sometimes even an experienced one) opens a list of detector characteristics he gets lost in dozens of names and terms. Below you may find the main and most important ones and get the idea of how they work.
This allows a metal detector sense only some specific kind of metal. Do you have any idea how much iron-containing rubbish can be found in the ground? Foil from cigarette packs, aluminum beverage cans, bottle caps – if you have a metal detector that responses to all of these it'll just add some blind-alley job for the user.
Once you've adjusted the discriminator you can skip all the rubbish and concentrate on treasure hunting – notching only for gold, or copper, nickel, silver and so on.
Another big obstacle for a metal detector user is lots of ferrous materials, which are of no use for a treasure hunter unless you've decided to clean the ground from metal rubbish. To prevent the device from sensing the rubbish you need the discrimination. This way you can aim all your efforts to search the objects that are of more interest to you – coins, gold nuggets, jewelry.
In the majority of devices the discrimination is selective – you can exclude gold from the search range, but leave nickel there (modern coins are made of copper and nickel alloy).
Due to the discriminator the user's task gets easier, therefore you should pay attention to this point when choosing a metal detector to buy. The more programs the discriminator has the easier it is to operate your MD.
You won't have to dig every time you get the device response, which sufficiently saves your time and efforts.
Depth of searching
This is what influences how deep your metal detector can “see”. The depth of searching depends on the target size – the larger it is, the deeper it can be “seen”. For example, the average depth of detection performed by modern professional MD with a standard 10” coil for stand alone coins is about 12 inches, for a treasure of army helmet size – is about 3 feet, for a larger target the depth is up to 5 feet.
In case of inexpensive devices this value will be not more than 10-20% due to the false alarms from the ground which have increased once the coil diameter has been changed. Single frequency metal detectors deal with the soil disturbance less efficiently, than those multi-frequency ones.
Usually we search for treasures and coins in the ground full of different disturbances that prevent electromagnetic signal from passing from the device coil into the ground. Such disturbances and unwanted signals share one common term: soil disturbance.
The less is soil disturbance level, the deeper metal detector can “see”. There are light-textured soils such as black soil, peatbog, sand. Soils with high disturbance level are the following: salty wet sand, soils with ceramic, burned clay and bricks inclusions as well as with corroded metal fragments and oxides. Mountaneous ground, clay loam, clay, alkaline soil should also be considered as soils with high level of disturbance.
A metal detector automatically defines a type of the target found and you get the info on LCD display or by means of sound indication. Many MD models are equipped with an identification scale that has icons/pictograms symbolizing a target type – for example, a coin, gold or relics.
Sound identification is a multi-tonal one – each height of pitch corresponds to an object with different conductivity. This function is irreplaceable for underwater metal detectors, since they don't have a display and the identification process is performed only by means of audio signals.
This function will be very handy when using the device on soils with high level of disturbance, complex and alkaline soils. However, any kind of soil always contains some percentage of minerals in it, which may give false alarms to a user. Especially the ground balance function is useful when searching for gold, because it is known to be found specifically in complex soils.
Searching along salt water beach, firing ground, alkaline soils and under other complex conditions is performed much easier if your device has a ground balance function.
It can be of 3 types – preset ground balancing feature, auto or manually adjustable one. Let's look at each of them in details.
Fixed ground balancing feature
This is when your metal detector has its ground balance adjusted by the manufacturing company in one set position and it can't be changed. This is a very rough adjustment that works for the majority of soils.
The device with such settings performs consistently on any ground, however at that it comes short of searching depth, if compared to the devices with auto or manually adjustable ground balancing features. Nevertheless, a merit of fixed ground balancing is that an unexperienced user can easily operate such a device.
A downside is that it's impossible to adjust the device to some certain soil conditions and, therefore, no high productivity should be expected, because the device just doesn't have proper searching depth and sensitivity.
Auto ground balancing
This feature allows the device to sense levels of the soil mineralization and automatically adjust accordingly. The user should just perform some simple operations with a coil, which will take just 10-20 seconds. The device microprocessor gets a signal from the ground and automatically adjusts the detector to work at this very area of search.
Experienced treasure hunters are aware that in some areas the ground characteristics may change quite frequently and therefore you have to adjust the device each time you change the location. This should also be done is case you see some instability in the device performance.
The professionals advise even if your metal detector works consistently and you haven't changed the location of your searching, yet you should adjust ground balance at least once in two hours. This will only improve the searching process. Another benefit of auto ground balancing feature is that it's fault free.
Though, the drawback is that fine adjustment is impossible to do to improve the device performance.
Manual ground balance is different because the user itself decides is any adjustment is required. The process is similar to auto ground balance adjustment, however, the user has to define the soil mineralization level on his own using the data provided by the device.
To do this one has to know a lot and be rather experienced treasure hunter. Furthermore, when the adjustment was done wrongly the searching result will be zero and, on contrast, professionally performed ground balancing allows obtaining the best result.
Static mode pinpointer ensured precise target detection. This feature of a metal detector essentially increases the convenience when using the device and decreases the time required to dig the target out. Most of valuable finds are small sized (coins, rings, jewelry). For example, if a small coin is somewhere in a peace of dug out ground the pinpointer will show where exactly you should look for your find.
Earlier, when metal detectors didn't have a pinpoint feature the target location was defined by so called “cross method” - the user swings the coil lengthwise and perpendicularly and the point where the responses intersect is considered the target location. The pinpoint function has simplified the process significantly.
Nowadays, you just have to turn the function on and slowly move the device over the estimated target location area and you'll get the precise location (you'll hear the loudest audio signal and it'll also be indicated on the metal detector display). In pinpointer mode the depth of the target location is shown as well.
The number of operational frequencies and their values
Amateur one frequency metal detectors depending on their frequency are adjusted to search just for large or small targets. Their high frequency of 18 kHz allows detecting small objects of several ounces size. However, a high frequency signal faster attenuates in the ground, that's why the searching depth is a bit less. Low frequency of 3 kHz makes detecting of small objects less sufficient, although the electromagnetic signal penetrates deeper into the ground and the searching depth becomes larger correspondingly.
So, the lower is metal detector operation frequency, the deeper located target it can find. To compensate for this shortcoming the manufacturers have foreseen the possibility to change coils. For instance, you have found a location promising lots of finds and your metal detector design allows changing its coil.
Therefore, first you walk around the area with a coil that has high operation frequency and then with low frequency coil. As a result, there are no missed findings.
The lower the frequency is, the higher is a metal detector sensitivity to targets made of metals with high conductivity (copper, bronze, silver). Another advantage is that this way it is easier to find large and heavy findings (though the finding square is usually considered, you may also take its mass into account).
Low frequencies have good penetrability and they also can be used for soils with high mineralization and alkaline soils. Nevertheless, quite often low frequency signals are distorted due to some electromagnetic interference.
The higher the frequency is, the more sensitive the device becomes to targets made of low conductivity metals (aluminum, nickel and etc.) as well as to small and thin objects. High frequency signals have lower penetrability and they can't be used when searching around mineralized and alkaline soils.
However, at that this type of signals is completely resistant to any electromagnetic interference.
Medium frequencies are a compromise between low and high ones. Medium frequency is considered a multi-purpose one that will do for any type of target. Although, don't take it too literally, summarizing that low frequency metal detector won't “see” any small targets at all. Of course, it will, but taking into account the frequencies peculiarity.
Professional multi-frequency metal detectors with 28 operation frequencies from 1,5 to 100 kHz can perform searching both at high and low frequency, which allows to combine in one device the best features of low frequency and high frequency metal detectors.
Using of multi-frequency MD is like operating several single frequency devices with different characteristics simultaneously.
The number of functions and user-friendly design of a metal detector
These are very important characteristics to be taken into account when choosing an MD. Quite often the beginners tend to buy a professional metal detector at once. In this case you have to keep in mind that mastering an expensive professional device may take weeks or even months.
Such detectors have a large number of features and if some mistakes are made when adjusting them the searching depth may be even less, than that of entry-level devices. That's why an inexpensive metal detector is the best choice for those, who are just beginners in treasure hunting.
Such device requires minimum adjustment. The most important is to learn the technology of using a metal detector.
Metal detector with damp proof coil
Most of metal detectors have a damp proof coil that can be used for searching soundings. However, you shouldn't let the control unit get wet. There are special cases to prevent this. As for the professional metal detectors, they are completely damp proof and usually they are designed to perform searching both on land and in water.
A metal detector price
For the majority of treasure hunters the main determinative factor when buying a metal detector is its price. There popular models within each price bracket. Therefore, you have a chance not to get puzzled which one to choose and rely on conventional wisdom.
All these metal detector models have lots of positive reviews due to efficient combination of their characteristics and features.
Modern metal detector search coils differ in their size and design. There are Mono (or so called concentric coils) and DoubleD coils. The main difference between DD and Mono coils is their signal format, which dramatically effects searching quality and focus.
Until recently, mono coils were those that came in a metal detector set. They have cone-shaped signal that is more suitable for pinpoint search or working on some contaminated land. However, such signal type captures small area of ground and the coil sweep for each step has to overlap at least the half of the previous sweep.
Thus, the beam diameter of 9 inch coil decreases twofolds when getting 4 inches deep. It is advisable to apply mono coils after several targets were detected. This will allow reducing the amount of digging and getting clearer idea of the possible object hidden.
With the advent of DoubleD coils the efficiency of searching has improved several-fold. The metal detectors produced recently are equipped with exactly this type of coils. They got their name due to mirroring location of receiving and transmitting loops that resemble letter “D”.
DD coils signal is a blade-shaped search field, that ensures uniform scanning of the surface under the coil. This type of coil is perfectly suitable for working on soils with high mineralization and for scanning large land areas. Moreover, the difference between DD and mono coil isn't the only parameter that can be used to improve your searching results.
To perform efficient instrumental search one has to take into account the coil size as well, since it may vary from 4 to 20 inches (if necessary you can find coils twice as large). Small coil size allows not only to scan some hard-to-reach places, but also to minimize the influence of soil disturbance.
When scanning using standard frequencies and a small coil you can detect even the tiniest objects and define precisely the material of the objects next to them. Though, quite frequent sweeping with the search coil and small depth are considered as drawbacks of these coils.
Middle sized coils (from 8 to 12 inches large) are believed to be more multi-purpose ones. They may be used to detect wide range of targets. As for the coils larger than 13 inches – there will do for deep search of large objects and at that they quite often miss smaller objects.
This is due to the necessity to analyze large amount of soil when small objects are treated as a part of soil disturbance.
Last update on 2018-08-17 at 12:44 / Affiliate links / Images from Amazon Product Advertising API