Here is another water sensor that helps you avoid costly leak accidents. The Aeotec Z-Wave Plus Sensor is a flood sensor that can detect as little as 0.03% of inch of water. It also has a temperature sensor to monitor between -4ºF to 212ºF.
The battery life lasts over 2.5 years. A 60dB siren is included to let you know when there is a leak.