Features: APP Remote ControlSimple download APP "Smart Life/Tuya" 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 two feet of the detector was immersed by the water, 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 with double-sided adhesive tape in just a few steps. Excellent DesignTiny and fashion, making your home life smart and relaxing. Low-consumption 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: 2 * Alkaline battery(not included) Standby Current: 24uA Alarm Current: 37mA Wireless Type: 2.4GHz Protocol: IEEE 802.11b/g/n APP: SmartLife/Tuya Material: Superior ABS Operating Temperature: 0~ 40 Operating Humidity: 20% ~85% Item Size: Approx. 8.5 * 4.5 * 2.4cm(L*W*H) Item Weight: Approx. 50g / 1.8oz Package Information: Package Size: Approach. 9.8 * 8.2 * 3cm / 3.9 * 3.2 * 1.2in Package Weight: Approach. 63g / 2.2oz Package List: 1 * Water Sensor(with Sticker) 1 * User Manual(English)