Winland WaterBug WB350 Liquid Leak Sensor

Low battery alarm,Internal audible alarm,Includes one standard unsupervised surface sensor (W-S-U),Accepts up to 6 sensors (W-S-U and W-UC-U),Sensors can be located up to 100' (30.48 m) away from the unit for wide area protection,Utilizes 9V battery for stand-alone operation, battery not included

Winland WaterBug WB350 Liquid Leak Sensor 9V battery powered (battery not included) Integrated buzzer alarms on water presence and low battery Includes one standard surface sensor unsupervised (W-S-U) Connect up to 6 sensors wired in parallel up to 100' (30.5 m) using 22 AWG twisted pair Open collector output Will not alarm due to high condensation or humidity. Designed to detect nonflammable conductive liquids (Distilled water cannot be detected).