This item is . It will provide convenience in flooding and overflowing in kitchen, bathroom, garage, fish tank, aquarium, and etc. A must have accessory for household. Features -Color: White -Material: ABS -Size: 7.10X2.50X2.00cm/2.79X0.98X0.79in : 70mah-120mah type: 2.4G Storage humidity: 0%~90%RH Working humidity: 20%~85% RH Working temperature: 0C40C (32"F104"F) Compatible for Android 4.4/iOS 8.0 or later Sensor cable: 1M Battery life: 6000 triggers Battery: 2 AAA (not included) - When the two probes of the was immersed by water, the will push to your phone. - You will be aware of water overflowing in time, reducing flooding risk. - App control, the is connecting to network through , you can control the sensor wirelessly. - Put water at testing location, when probe detects water level is too high, it will send out notification through app. - Suitable for bathroom, kitchen, water tank, aquarium, and etc. Package list: 3 sensor