Leak Sensor Bath Tub Sink Overflow Detector Water Leakage Alarm Detector 135dB
Built in 9 V 6F22 battery, standby current ≤ 3.5 µ A, laboratory tested continuous standby for ≥ 3 years; Alarm current ≤ 65 mA, continuous ringing for ≥ 5 hours, truly say goodbye to frequent battery changes.