There are people who have taken up metal detecting as hobby over the weekend. Then there are professionals like treasure hunters and those in the army. Professionals in military use the metal detector during field work such as going to another country where there is ongoing war. They use it to detect hidden bombs under the ground, so that they can deactivate it. While professional treasure hunters use metal detecting device to track where the hidden treasures are located no matter how deep it is. 

There are different metal detecting device for different purposes. Some of these devices can be classified like:

Beat Frequency Oscillation: the BFO is the cheapest metal detector in the market and are used by beginners. The make is like of VLF but it doesn’t have a filter and tuning capability which makes its result inaccurate. Sure it can detect metal objects but it will not tell if what you have found something priced or priceless. However, if you do not intend to look for treasure, BFO can also be a big help.

Very Low Frequency: it is the most common metal detector used by many because it can detect all kinds of metal. The 2 rounded coil wires are used to operate the VLF device. The other coil in the exterior acts as the transmitter which releases low frequency magnetic waves on to any land. It also has an electronic circuit which categorizes the elements gathered by the device. You can tune this device depending on what you are looking for.

Pulse Induction: the PI is a heavy duty metal detectors and commonly used securities and treasure hunters that are more accurate. Unlike VLF, PI automatically changes to “listen” if it detects something. It can distinguish signals from the one that you are looking for and from the sounds in the area. This is the most expensive metal detecting device in the market.

Metal detecting can be fun and exciting because you will never know what you can find that might surprise you.   Many use metal detectors on historical places, forests and beaches hoping to find valuable treasure. If you are the adventure type or just simply curious on what is beneath the ground, purchase a metal detector or might as well build one your self. You can check other e-commerce websites wherein you can buy metal detectors. Nevertheless, if you want to build it yourself, search the internet on how to build your own metal detector.