WB-350 WINLAND WATERBUG 350 UNSUPERVISED (9 VOLT BATTERY POWERED)
Winland WB-350 WaterBug 9V Standalone Water Detector
Battery-powered WaterBug WB-350 uses a 9V battery and up to six W-S-U probes to detect leaks in basements, sump pits or equipment rooms and sound its buzzer or trigger external alarms.