Function: 1. 100dB Alarm: If you forget to close the windows on rainy days, the alarm will emit a 100dB warning sound when it detects water. 2. High sensitivity: when the water level at the sensor monitoring point reaches 0.5mm, the two metal probes create a passage, and the water level sensor emits an alarm sound to remind you 3. Property protection: 24-hour flood detection and timely alarm to protect property safety, so as not to cause major loss. 4. Durable Material: The water leak alarm is made of ABS material, waterproof and durable, small size, easy to place anywhere. 5. Wide application: suitable for home premises, boats, water meters, toilets, shops, garages, warehouses, basements and other places. Specification: Item Type: Water Leakage Alarm Material: ABS Volume: 100 dB Size: Approx. 80x32mm/3.15x1.26 in Applications: Placed in engine rooms, boats, water meters, toilets, shops, garages, warehouses and other places Package List: 1 x water leakage alarm 1 x manual