This model’s main draw is the fact that it can go up to 200 feet underwater, letting you combine metal detecting with diving and opening up more possibilities for you to find things. It also works excellently outside of water and is able to handle highly mineralized soils since it was built with deep water environments in mind. The CTX 3030 has the ability to detect several objects at once, at greater depths. As well, we did not get a response after calling the company several times. This is not so much a flaw as a statement of the model’s context in the wider world of detectors. Higher-end detectors usually offer additional features, such as even greater waterproofness, multiple coil options, and multifrequency detection .

Thompson likens it to a smaller version of a metal detector that helps keep him from digging unnecessarily big and messy holes. That way, when you put everything back in, it’s like you never were there,” he says. Both he and Dominique Ivy, a detectorist in the Northeast, use White’s Electronics TRX Bullseye Waterproof Pin-Pointer. Unfortunately, that particular model is sold out everywhere online at the moment, but Martin recommends this one from XP. If you’ve got a kid who’s dying to start digging for treasure, Martin recommends getting them the Minelab Go-Find 66.

metal detectors

The size, shape and orientation of the metal particle also is important. Since size, shape and orientation of metal contaminants is not possible to control, it is best to operate a metal detector at the highest possible sensitivity setting. Providing treasure hunting supplies to the beginner as well as the seasoned professional. Manufacturers of metal detectors are constantly tuning the process to make their products more accurate, more sensitive and more versatile. On the next page, you will find links to the manufacturers, as well as clubs and more information on metal detecting as a hobby. The most basic way to detect metal uses a technology called beat-frequency oscillator .

What Can Be Detected

Thick padding and Velcro-strapped forearm rest make this the comfiest metal detector. The displays of metal detectors come in a wide array of options, some better than others. In general, an LCD display is preferable over the old knobs and meter layout, as it gives much more information along with more options for customization. We found that when the different components on a detector snapped together, this provided a sturdier frame than those that were screwed together. Also, the component of the metal detector that rests on your forearm should be large and comfortable, as we found that much of the weight of the detector rests on this spot.

What Is A Metal Detector Used For?

These detectors can also usually emit different audible tones, depending on the type of metal that’s being detected. This lets you save time by only digging for items that you think are valuable. Once you turn the unit on, you move slowly over the area you wish to search. In most cases, you sweep the coil back and forth over the ground in front of you. More advanced metal detectors provide displays that pinpoint the type of metal it has detected and how deep in the ground the target object is located. This Sunpow model boasts upgraded technology that the manufacturer says allows for greater search range and more powerful sensitivity.

One coil act as an RF transmitter the other as a receiver; in some cases these can be tuned to between 3 and 100 kHz. When metal is in their vicinity, a signal is detected owing to eddy currents induced in the metal. Unfortunately, high frequency is also sensitive to ground mineralisation interference. This selectivity or discrimination allowed detectors to be developed that could selectively detect desirable metals, while ignoring undesirable ones. The simplest form of a metal detector consists of an oscillator producing an alternating current that passes through a coil producing an alternating magnetic field. If a piece of electrically conductive metal is close to the coil, eddy currents will be induced in the metal, and this produces a magnetic field of its own.