In your search for an underwater metal detector, we have you covered here at MetalDetector.com. To help you select the correct unit, all of our product specialists are versed in underwater detectors including Moe Dipinto who also is a certified diver.
For recreational scuba divers, the underwater world is nature in its purest form. Nothing offers more splendor and bliss than exploring the pristine beauty of coral and reefs, schools of fish and all of the marine life that inhabits the sea. Some divers enjoy underwater photography, others are searching inside caves and shipwrecks and others like to go sight-seeing. But, there is another facet to diving—and that is scuba detecting. Scuba detecting is metal detecting in fresh or saltwater which is usually less than 20 feet deep while using scuba gear.
Why Use a Metal Detector When Diving?
Many divers are thrill-seekers inherently—always ready for their next challenge. So you’ll see these questions frequently in diving forums: “What can I find with an underwater metal detector? Up to what depth do they work? How much can I expect to spend on a detector that functions underwater?” Recently, I saw a comment in the Scuba Board forum: “I am working as an instructor. Sometimes, I join fun dives while another instructor or dive master is taking divers out on a tour on one dive site. During that time, it would be cool to have an underwater metal detector to help find anything at all PLUS, pick up trash as well.”
There are dozens of reasons why underwater treasure hunting is extremely exciting. It’s amazing what you can uncover in the sea. Near beaches/resorts or even in remote locations, divers detect gold and/or diamond rings, watches, money, relics and more. An underwater detector can even lead you to wreck sites. In deeper water, there is far less trash and more good targets. When scuba diving for jewelry and coins, most targets are found very close to where they were dropped. This is due to the deeper water which reduces the effect of waves. Anywhere there has been traffic in the past, you can find coins and jewelry.
As far as shipwrecks, detectors allow divers to locate a variety of artifacts buried up to two feet below the sea bed. Older wooden wrecks lend themselves to metal detecting. These types of wrecks tend to have littered artifacts over large areas of the ocean. Scuba detecting can be done either in shallow water or in deep water down to 200 feet. It’s important to note that anything below 130 feet is outside of recreational diving limits.
About Underwater Metal Detectors
The underwater models typically have a headset you wear like a stereo headset. As you pass over a metal object, you hear a beep. You swing the coil over the object listening to the beep and try to visualize where the spot is as the coil passes over. Then you can carefully uncover the treasure by sifting through the sand. It could be anything from a bottle top to a diamond ring! You never know what you’re going to uncover.
Metal detecting for shipwrecks and treasure. Above: Diving with a Garrett underwater Metal Detector
There are a few types of underwater metal detectors—mainly the Pulse Induction or (VLF) Very Low Frequency detectors. These models are extremely sensitive to precious metals and are very deep seeking. VLF metal detectors are proficient at finding coins, relics and jewelry and can discriminate out junk targets. If you opt for a VLF detector, be sure that it has a saltwater mode. Pulse Induction models offer full salt water elimination. Salt elimination allows them to be unaffected by wet salt sand and ground minerals. Most underwater detectors operate at depths of up to 200 feet; some operate up to 250 feet.
The prices range on fully submersible metal detectors. Generally speaking these models range from $500 to $2,000 depending on which advanced features they are equipped with. One scuba detectorist recommends the Fisher CZ-21 Metal Detector. It is an easy to use, deep-seeking and submersible VLF detector. The Fisher CZ-21 metal detector features automatic turn-on-and-go operation for salt water, fresh water or land use; target strength LED and full-range trash rejection control.
Visit MetalDetector.com for Underwater Metal Detectors
For all of your underwater adventures, you can easily select the best underwater metal detector at MetalDetector.com. You can conduct side-by-side comparisons of different models to ensure you are getting all of the features you desire. To learn more about scuba detecting and equipment, read our related article entitled Underwater Metal Detectors – Reviewing the Best Options.