Water Leak Detector Sensor Alarm: Smart Sink Overflow Monitoring Adjustable Wet Drip Leak Alerts: Water leak detector alarm is designed with 4 rear water leakage detection probes and 2 front drip probes. There will have an alert when any of the three sets of probes were under the water. Wireless Easy to Use: No wire or setup required, just put it on any place where the water leak may be happening. Loud Alarm with Mute: Our 100dB alarm is loud enough to be heard, you can clearly know where the leak occurred and deal with it in time. IP66 Waterproof : It adopts IP66 super waterproof surface shell allows long-term use in high humidity areas and long battery life. Long Life Low Battery Alert: The sensor is energy efficient and one battery can last over 2 years under normal usage, Low battery alert function allows will beep and flash a red light when the battery is low.