Features: APP Remote ControlSimple download APP "Smart LifeTuya" on iOS and Android to add the device to detect the water level overflow, no hub required. Home security in your hand all the time. Working PrincipleWhen the detector was immersed by the water, the sensor will beep, and the alert notifications will be pushed to your phone, be aware of water overflowing in time, reducing flooding risk. Easy to InstallNo complicated installation tools are required. The sensor can be installed in just a few steps. Excellent DesignTiny and fashion. Lowconsumption design, which can make it work long time.? Wide ApplicationIdeal water intrusion warning for homes, apartments(kitchen, toilet), warehouses, offices, laboratory, hotel rooms, garages, etc. Specifications: Type: Water Level Alarm Power Supply: 1*CR123A (included) Standby Current: less than 20uA Alarm Current: less than 125mA Standby Time: 2 years Wireless Type: 2.4GHz Protocol: IEEE 802.11bgn APP: SmartLifeTuya? Support systems: Android and IOS Waterproof: IP55 Material: Superior ABS? Operating Temperature: 0 celsius 70 celsius Operating Humidity: 20percent 85percent Item Size: Aprox. 5.5 * 5.5 * 3.5cm(L*W*H) Item Weight: Approx. 46g 1.62oz Package Information: Package Size: Approach. 8.3 * 8.3 * 4.1cm 3.3 * 3.3 * 1.6in Package Weight: Approach. 68g 2.4oz Package List: 1 * Water Sensor 1 * Reset needle 1 * User Manual(English)