The self-contained, waterproof, SS901ZB Water Leak Sensor with a 6 1/2foot long sensor wire can be placed virtually anywhere, wirelessly communicating with the SC904ZB Inline Shutoff Valve to protect your home Adding additional SS901ZB Sensors creates a network of leak detection for each SC904ZB Shutoff Valve Integration with your SALUS home automation system allows remote system monitoring through an internet connection to give you peace of mind wherever you are.