1. Tuya Smart ZigBee Water Leakage Detector: A Tuya ZigBee Wireless Gateway Hub is a must to work with the flood sensor, as well as a variety of ZigBee smart products, which is proved to be the bridge and control center for smart homes and plays an irreplaceable role for all ZigBee products and realizes the whole linkage of your house.Simply add the sensor into the ZigBee hub after adding the hub into Smart Life/Tuya App. 2. A water immersion sensor that detects water leakage in the environment in real time.Whenever and wherever you are, once flood sensor detects water overflow or water leak, you will receive a notification by smart phones with Smart Life Tuya App compatible. 3. Keep your house safe all the time.A really good assistant for your smart house, no more worry about the flood with the sensitive sensing, protecting your home and valuables from annoying leaks and dangerous floods, whether it's a dripping sink under the bathroom cabinet, a burst pipe in the basement, or a severe weather event. And even track history of sensor activities in App to get much more intelligence and convenience. 4. Wide Applications: Apply the smart flood sensor to different scenes, your garage, bathroom, kitchen and anywhere with water you like, keeping your house away from flood danger with a linkage of the smart flood sensor.(Note: Use the sensor with your smart valve together to intelligently control the irrigation condition, which enables real-time monitor and the valve will close automatically when water leaks.) type: Zigbee Water Immersion Sensor Material: plastic colour: White Package Contents: 4 x Water Leak Detector(Without 1 x 3v Battery)