Metal detectors are devices designed to find metal buried under dirt, sand, grass, and even in bodies of water. Metal detectors work by creating a magnetic field around the electrical search coil, which spreads out to an average depth of about 10 inches. If conductive material is within the detector’s range, the electromagnetic signature of the material disrupts the magnetic field. The detector’s visual and audio alerts let you know you have found something.
金属检测对于个人或儿童家庭来说是一个伟大的爱好 - 一些专门的和熟练的从业者甚至作为职业生涯。最好的金属探测器，您将取决于您想要使用它的方式以及在哪里，以及您是否想要一个简单，简单的模型或具有大量铃声和口哨的模型。
The products below were selected as the best metal detectors in their respective categories, based on customer satisfaction, product efficacy, and overall value.
- BEST OVERALL:Garrett ACE 300 Metal Detector with Waterproof Coil
- RUNNER-UP:SUNPOW Professional Metal Detector for Adults
- BEST BANG FOR THE BUCK:Tacklife Metal Detector, 3 Modes Adjustable Detectors
- BEST RELIC HUNTING:RM RICOMAX Professional Metal Detector GC-1037
- 最好的防水：Garrett Pro-Pointer在防水金属探测器
- BEST FOR KIDS:赏金猎人少年T.D.D.金属探测器
- 最适合黄金：fisher金bug pro metal探测器
- 最适合淡水：Pro Metal Detector的Garrett
- 最好的盐水：Garrett Sea Hunter Mark II防水金属探测器
Very Low Frequency (VLF) Detectors
Very low frequency (VLF) detectors are the most common and affordable types of metal detectors. A VLF detector has two coils: a transmitter coil that creates the magnetic field, and a detector coil that senses any disturbance in the field created by conductive materials.
In addition to being inexpensive and easy to find, VLF detectors are lightweight and durable, which makes them great options for beginners and children. This kind of metal detector is typically used to find coins, jewelry, relics, and other metal deposits. Though there are water resistant and waterproof VLF detectors on the market, pulse induction (PI) detectors are better for underwater metal detecting.
In contrast to the VLF detector’s two-coil design, Pulse induction (PI) metal detectors have just a single coil. This one coil transits the magnetic field and detects conductive materials. PI detectors’ single-coil design is less affected by ground mineralization than VLF detectors, which is why it’s better to use PI detectors when searching beaches, rivers, or underwater (if you have a waterproof detector). PI detectors are not the best metal detectors to use in cities because they cannot discriminate between iron trash, like nails, and treasures like coins or gold. Another disadvantage of PI detectors is that they are more expensive than VLF metal detectors. Novice metal-detecting hobbyists may not want to make such a substantial investment.
- Multifrequency metal detectorsare ideal for professionals or hobbyists who enjoy metal detecting in a variety of locations. By changing their frequency settings, multifrequency metal detectors can be used in cities, on the beach, in rivers or lakes, or even in the ocean without needing both a PI and a VLF detector. The downside is that multifrequency devices tend to be expensive.
- Gold metal detectors, as the name indicates, are designed specifically to find gold. This type of detector can be either a VLF or a PI detector, but has a higher frequency range than the other detectors. This higher frequency won’t set the detectors’ alerts off when they encounter salts and other minerals commonly detected while searching for gold.
- 防水金属探测器run the gamut from those that have waterproof coils for searching in the shallows at the beach or in a river, to fully submersible metal detectors with waterproof coils and sealed controls that you can use while scuba diving. Make sure that a product’s “waterproof” designation—some units may not be submersible, for example, or others submersible only to a certain depth—is in line with the level of waterproofing you’re looking for.
Before you decide on a suitable product, think about where you will be using your metal detector and the types of targets you will be looking for. If you live near the ocean, lake, or a large river and you want to explore the waterfront with your metal detector, it’s prudent to invest in a product with waterproof coils or even one that is completely submersible.
If you’re headed to the desert to seek gold deposits, waterproofing isn’t as much of a concern. Rather, shop for a metal detector with a gold-specific detection range. For history buffs who seek Civil War or other historically significant relics, VLF detectors are often a viable option because they can differentiate between screws and coins. Some relic hunters opt for PI detectors, however, because they will detect most metal objects in an area, allowing the hunters to sort through all] the metallic bounty they find.
The discrimination of a metal detector is its ability to distinguish between types of material. For instance, a detector with good discrimination would be able to tell the difference between a coin and a bottle cap.
Soil contains trace amounts of metals and metal alloys. No matter where you use a metal detector, these traces can interfere with a metal detector’s ability to locate coins, jewelry, and other metal objects. Metal detectors that have a feature called ground balance, however, are able to ignore these metals, effectively reducing false readings. There are four main types of ground balance:
- Automatic ground balancewill automatically detect and adjust for interference. The user doesn’t have to do anything.
- 预设地面余额cannot be controlled by the user. The manufacturer tests and sets the baseline for detection, allowing the device to ignore small interferences that fall below this threshold.
- Multiple ground balance为用户手动设置地平衡级别，或将其留在自动设置上。
Having a metal detector with target identification takes discrimination a step further. Instead of alerting you when there is something worthwhile to dig up, this kind of metal detector actually indicates what the object is, within an acceptable range. A metal detector with target identification can usually distinguish between jewelry, junk, gold, even coins of different denominations.
The operating frequency of a metal detector is the number of times per second that the signal is transmitted and received by the detector. Low-frequency metal detectors are able to scan deeper into the ground, which is why they’re very good for finding large, buried objects. In general, most metal detectors have a low- to medium-frequency range.
The sensitivity of a metal detector refers to how well it can detect conductive materials from a specific distance. Most metal detectors are labeled with the recommended sensitivity level that is appropriate in most applications. In some situations, the user may have to lower the device’s sensitivity level for it to work effectively. The level might have to be adjusted, for example, if the search area is high in mineral content or is near power lines.
The depth that a metal detector is able to search for conductive material is known as its search depth. Typical search depths vary greatly between products: They range from about 2 inches to 15 inches. Lower-frequency detectors offer a better max-depth rating than high-frequency detectors.
Keep in mind that search depth isn’t just dictated by the metal detector you use. Your location, the type of ground you’re working with, and interference above or below ground can all reduce or improve your metal detector’s search depth.
如果你买一个金属探测器,莎尔e with others, think carefully about who you’re sharing it with. Children will need a metal detector that isn’t too heavy, and preferably one that can be adjusted to an appropriate height. Sharing a metal detector with another adult who’s different in size or strength will also impact which detector you select. Those with back or shoulder injuries should avoid heavy detectors that could exacerbate existing health problems.
The Garrett ACE 300 Metal Detector has a maximum search depth of 8 inches and a frequency adjustment dial that makes it easy to clear up static and other signal interference. The VLF metal detector has adjustable discrimination sensitivity, giving the user a high degree of control over the type of metal he or she detects.
The Garrett ACE metal detector is lightweight at 2.8 pounds, and has a padded, ergonomic grip to reduce hand and arm fatigue. It is packaged with a set of headphones that can be used in loud environments, like crowded beaches. The detector’s pinpointing mode gives off increasingly strong signals as you get closer to the object you have detected, and its target depth indicator gives you the estimated depth of the object.
With this VLF metal detector you can head down to the beach or the river and get a little wet because it is waterproof to a depth of 4.5 feet. The SUNPOW Professional metal detector weighs 5 pounds and has an adjustable stem. Though it’s a little heavy, being able to adjust it to the correct length is a plus. The SUNPOW comes with a carrying bag and a metal shovel, which will help you dig up your treasures.
金属探测器有一个最大的搜索深度8。7 inches and it has three operating modes, including all-metal, notch, and discrimination mode. All-metal mode will detect all metals in the area including iron, aluminum, gold, bronze, and silver, without filtering at all. Notch mode allows the user to ignore undesirable metals so you can focus on your intended targets. Discrimination mode lets you choose the type of metal object you want the detector to detect and ignore all other metals. This metal detector also has a manual ground balance adjustment function, so you can decide what is included in your search and what is not.
如果您是金属检测的新手，但不想从大门中耗尽大量的钱，Tacklife Metal Detector是一个很好的选择，在钱包上是浅色，但具有沉重的功能。VLF金属探测器有三个音频音调和三个可视图标，可在找到项目时提醒您。该图标让用户了解查找适合的基本类别：黑色金属，贵重有色金属，铜和银币。
While the RM RICOMAX Professional Metal Detector has a discrimination mode, relic hunters will especially appreciate its all-metal and pinpoint modes. When looking for potentially ambiguous relics that may get bypassed by an automated discrimination system, it’s best not to let the metal detector decide what is valuable and what isn’t.
这个金属探测器有一个马克斯搜索深度为6ches and an adjustable discrimination control that allows the user to exclude specific materials from a search. One of its coolest features is that it has three audio tones and three visual indicators that notify you when it detects an object, and it will even reveal in general terms what the object is. The Bounty Hunter Junior’s target depth indicator will also let kids know how deep they will need to dig for their treasures. Stick to dry locations when using this model, however. It is not waterproof and may be susceptible to water damage in shallow water and light rain.
The Fisher Gold Bug Pro Metal Detector has many beneficial features to detect and identify gold. The VLF metal detector uses a continuous ground-condition sensor system that provides updated readouts whenever the metal detector is moved to a new location. As you’re interpreting the readouts on the display, the metal detector automatically adjusts the ground balance system so that the next wave of the wand is optimized to your new location.
This metal detector also has a high maximum operating frequency optimal for detecting gold and very small materials and, at just 2.5 pounds, it is easy to carry for long periods of time. It has the bells and whistles hobbyists want, including a discrimination mode, an all-metal mode, and a pinpoint mode with depth indicator. The Fisher Gold Bug Pro’s max search depth is 6 inches and it will alert users with its tone and visual ID systems when it detects a metallic item. While this metal detector is designed to find gold, it can also be used for finding other materials.
Take this VLF metal detector down to the lake or to the river to hunt along the shore and in the shallows without worrying about water damaging it. If you slip and fall into the water or drop it into shallow water, the Garrett AT Pro will be fine as long as it doesn’t fall below a depth of 10 feet.
Sharing this metal detector with others is a cinch with this detector’s adjustable handle. It weighs just 3 pounds, can be used in both wet and dry locations, and has a max search depth of 6 inches. It features a sensitivity setting used to adjust the elimination threshold on discrimination mode, and both an automatic and manual ground-balance settings.
Divers will love the Garrett Sea Hunter Mark II waterproof metal detector, which is submersible to a depth of 200 feet in freshwater or saltwater. This pulse induction metal detector has an all-metal mode that detects conductive material without a discrimination filter. This is a terrific feature to have on a submersible metal detector—you can be alerted to all kinds of metal objects underwater, where there’s not a lot of metal trash.
Before investing in a new metal detector, take a look at these frequently asked questions and their answers below.
一个高质量的金属探测器应该特性will help the user get the most accurate readings possible. These features include a ground balance setting to focus the detector on specific materials, and a high-quality sensitivity control. Look for a model with fast reactivity time, so you can pinpoint or pick up several objects in a single sweep.
Most metal detectors should be able to detect various types of metal, though the type of detector will impact how strong the signal is from less conductive metals like aluminum, iron, zinc, lead, or heavily corroded or coated metal objects. These kinds of metals have less of an electromagnetic signature for the detector’s magnetic field to pick up.
Q. Can a normal metal detector find gold?
All metal detectors can find gold if it’s within the device’s prescribed depth range and the pieces of gold are big enough for the detector to find. A gold metal detector is a specialized device designed specifically for finding gold.