Underwater Metal Detectors Accurately Locate Gold Detectors Underground, Used for Underwater Waterproof Detectors     Underwater Metal Detectors Accurately Locate Gold Detectors Underground, Used for Underwater Waterproof Detectors               1. 100% brand new     2. Made of the latest high-quality waterproof materials, completely waterproof     3. Three modes-vibration mode (silent), audio mode, vibration and audio mode.     4. With three different sensitivity levels, different sound and vibration alarms are issued for different distances between sensors and objects.     5. Suitable for metal detectors in outdoor, indoor, sand, lawn or soil, which can quickly and accurately find coins, silver, jewelry and gold          Description:     Name: HS-10 Metal Detector     The sensitivity of detecting a dollar coin is 6-7 cm.     Detection method: vibration, sound alarm     Power supply: 9V battery (not included)     Working environment: temperature -20°C -60°C     Colour: green     Material: plastic     Size: 28 x 4.5cm          Package Contents:     1 x Metal detector (not including battery)     1 x Instruction manual     1 x English manual          Only the above package content, other products are not included.     Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.