Probably the most exciting hobby when it comes to metal detecting with the use of metal detectors is doing it underwater for treasure hunting. This is because most of the valuable and voluminous treasures are still under the seas and oceans. Underwater treasure hunting is considered the most profitable of all treasure hunting although this is more expensive because of the underwater gadgets the divers need and a whole lot riskier, too. When it comes to underwater metal detectors, there are certain devices that are designed to be waterproof; some brands can be perfectly used in shallow waters while the heavy duty ones are perfect for deep see diving.

Metal detecting with the use of underwater metal detectors can be a great experience especially for those who want to relax and unwind in the waters while at the same time finding treasures or valuables they can keep. The underwater metal detectors are usually made to be vulnerable with the sea’s saline waters so they are also very ideal to use on fresh waters. However, if you want to have one of these, you should know the types of underwater metal detectors to find the right unit for your needs. Presently, there are three types of metal detectors being sold in the market and these are the pulse induction (PI) detectors, broad band spectrum (BBS) detectors and the very low frequency (VLF) detectors.

Specifications for Each Type

Each type of underwater metal detector has a certain capability for certain uses. For instance, a pulse induction detector can transmit series of electronic impulses on the water, sand or other minerals that are on the waterbeds. Although they are used within the confinement of water they are still very sensitive in detecting metals of any kind. This type of metal detecting unit is excellent for use on saline or salty beaches during diving expedition. With its pulsating circuit, its pulse can go deep into the water and can be able to discriminate metal objects of any kind.

Broadband spectrum underwater detectors, on the other hand, can transmit signals in many frequencies at the same time and able to transmit 17 frequencies at one time. The frequencies it can release can range from 1.5 – 25 kHz so they are very ideal to use while strolling along the beach or on shallow waters. Very low frequency detectors typically function within the range of 3 – 30 kHz so they are sensitive to relics, jewelleries, coins and can be able to detect and separate valuable metal items to trash that have metals in them.

If your passion is in finding lost treasures in the seas, you can get the most out of using underwater metal detectors to find yourself some valuables that can give you limitless fortune. Some deep sea divers became wealthy by capitalizing on the best underwater units for their hunt and the chances are also good for you if you know how to use old maps and navigate the seas to find old shipwrecks. Remember that there are still hundreds of documented but unfounded ships that remained lost in the seas and until today their tonnes of treasures are still waiting to be discovered.

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