Aeotec Water Sensor, Z-Wave Flood & Leak Sensor Monitor and protect against leaks and floods in real-time. Can also detect the absence of water when used with tanks Super accurate; can detect as little as 0.03% of an inch of water AAA battery-powered and wireless with 1 year battery life Compatible with certified Z-Wave gateways including Samsung SmartThings, mirrors vera, open Z-Wave, in control, and homeseer Z-wave certified. Certification Number: zc08-14030008