Basement Watchdog, Water Alarm, Detects Unwanted Water Only 1/32" Deep, Alarm Is Placed On The Floor Near Water Heaters, Sump Pump Pits, Washing Machines & Under Sinks, Sensor Has A 6' Wire So It Can Be Extended Into A Sump Pump Or Mounted On A Wall & Stretched To Another Location, Loud 110Db Alarm, Battery Saver Feature Keeps Batteries Fresh Longer, Uses One 9V Battery, Not Included, 5 Year Warranty.