- Waterproof probe for detecting wall posts, metal pipes, PVC pipes and water pipes. - Wireless probe that precisely locates hidden blockages in pipes and alerts with a buzzing sound. - Adjustable sensitivity: the receiver can increase the transmitter's perception ability by adjusting its sensitivity. - High sensitivity and LED light: the built-in metal detector can target objects quickly and accurately. It can locate coins, silver, jewellery and gold under different hunting conditions, indoors or outdoors, on walls, in the sand, on the grass or in the ground. The hand-held detector is suitable for hobby, safety and industrial purposes, and also for family leisure. - Use scenario: Plumbing maintenance and inspection to locate hidden blockages in pipes before repair. - Use scenario: Treasure and valuables hunting in yards, beaches, or construction sites to find coins, silver, jewellery and gold. - Use scenario: General detection tasks around home or work, suitable for both hobbyists and professionals for indoor and outdoor use.