[High Sensitivity & Quick Detection] Underwater Metal Detector The detection distance range is 3-20m / 9.8-20m, the sensitivity is based on size, volume, density and the detected environment. [Two alternative alarm modes] It has two types of optional alarm modes: Sound mode (buzzer and red light) and vibration mode (red light and vibration indication). [Low Power Consumption Battery] 9V 6F22 BATTERY, also has alarm indication, yellow LED (object detected), green LED flashing (the machine starts to work), flashing red LED (low power). [Application] Underwater metal detector detects wood metal, putty, plaster, drywall, panels, tiles, concrete and so on. [Satisfaction Guarantee] We take care of all customer feelings. If this product does not meet or exceed your expectations, please contact us at any time.
