The water leakage detector is waterproof. And it features low power consumption, high sensitivity, APP remote control, and timely alarm. This water immersion sensor can detect water leakage in the environment in real time. Through remote control, the mobile phone can close the water outlet. It is constructed of PC flame retardant material. The length of this product is 5cm, the width is 5cm and the height is 1.8cm. It is suitable for houses, hotels, shops, offices and apartments. Item Name: Smart Sensor Material: PC Flame Retardant Working Temperature: -10 Degree Celsius to 55 Degree Celsius Power Supply: CR2032 Battery (Not Included) Voltage: DC 3V Waterproof Grade: IP66 Waterproof Color: White Features: Waterproof, Low Power Consumption, High Sensitivity Size Details: LxWxH: 5cm x 5cm x 1.8cm/1.97" x 1.97" x 0.71"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Zigbee sensors and detectors cannot operate independently without a gateway. Package Includes: 1 x Smart Sensor 1 x User Manual