【Reliable Performance】: When the water sensor detects a water leak or a preset limit, the water detector will emit a 60dB alarm sound and the alarm will sound within 60 seconds and the alarm message will be sent to smartphone within 2-10 seconds (depending on network speed). To avoid possible water damage. 【Sound and light alarm】: Even if there is no WiFi, the scene can still trigger a loud 60dB alarm and a red flashing alarm on the spot, even if there is a leak in the basement, there is enough sound to hear. 【Widely used】: Perfect for homes, warehouses, basements, continuous monitoring of sinks, dishwashers, household appliances, refrigerators, washing machines, sewage pumps, water heaters, hot tubs, water pipes and filter devices, can also be placed around swimming pools, bathtubs and aquariums, and sensors will warn of the water level. 【Battery powered】: Built-in rechargeable battery (included), can be used for one year, and you can check the performance in the APP. 6.6ft/200cm