Easy to Use: The wireless water leak detector will trigger the host alarm when both sensors detect water, and the app on your phone will receive a notification High Quality Adopts smart detection with the anti-rust sensor, which makes the detector stable and reliable with high accuracy and sensitivity Mini Size & Low Battery: 54mm x 35mm, easy to install. The LED indicator will flash when the battery is low, please change a new battery Widely Used: Can be widely used in water storage devices or places where there is a possibility of water leakage like cellar, machine room, warehouse, etc Note: Only works with T1 alarm system, and also the only wireless water leak detector that can work with T1 alarm system, compatibility can not be promised to others Technical Parameters: Working Voltage: 3V. Static Current: 10uA. Alarm Current: 65mA. Alarm indicator: Red LED. Alarm output: 433m (factory default is 433m). Wireless distance: 80 meters (in open space). Operating temperature: 0-60C. Operating humidity: 0-80% RH (no freezing). Low voltage indicator: 2V (fast flashing). Dimensions: 54 x 35mm. Number of products: 1 piece. Color: White.