As most people know, many metal detectors can be used in the water. However, most of those metal detector only has the search coil part is waterproof. Thus, treasure hunters only can seek metal objects beside the river and in a short distance in the water. What you need is a metal detector which can go fully under.



Thus I recommend the MD-7020C Fully Waterproof Metal Detector to you. This metal detector can go fully underwater. And it contains the professional headphone. It owns two indicating mode, the sound and the LED display, which can let the user notice the signal quickly.