[APP Remote Control] After connecting with the ZigBee Hub, download the "Smart Life" or "Tuya" app on iOS or Android to add the device and monitor water level overflow. Stay informed about home security anytime. [Working Principle] When the sensor’s two contact points are submerged in water, instant alert notifications are sent to your smartphone, helping you respond quickly to potential water overflow and reduce flood risk. [Easy to Install] No special tools required. Secure the sensor in place using the included double-sided adhesive tape in just a few simple steps. [Excellent Design] Compact and sleek design for modern homes. Low-power consumption enables extended battery life. [Wide Application] Ideal for detecting water intrusion in homes, apartments (kitchen, bathroom), warehouses, offices, laboratories, hotel rooms, garages, and more. Note: This ZigBee water leakage sensor requires a compatible Tuya or Smart Life ZigBee gateway hub to operate. It is not functional without a ZigBee gateway. Type: Water Level Alarm Power Supply: 2 x AAA 1.5V batteries (not included) Standby Current: 15 µA Alarm Current: 150 mA Operating Temperature: -30°C to 70°C Operating Humidity: 20% to 85% Color: White Material: ABS Size: 70 x 25 x 20 mm Package Contents: 1 x Water Sensor 1 x English User Manual