Linkage Water Leak Alarm Linkage Water leakage sensor can work with KERUI alarm systems.It Can Work Independently.Please make sure connect 433mhz Alarm System. About our this Water Leak Sensor: Dripping and Leaking Alarm---1 probe for detecting drops from the pipe or tap, 2 probes to detect leakage water flowing to the ground. This design allows you to predict water leaks faster and more effectively.Widely Use---This product is often used in places where water can escape. You can easily place your water alarm near bathroom, kitchen, basement, garage, boat, water pipe.Sensitivity--- Once the probes come into contact with water/liquid or even the lowest amount of moisture, it immediately emits a loud 90 dB alarm and sounds until you dry the probe or the battery is empty. Prevent water leaks from causing floods to protect your belongings.Easy To Use--- No wiring,no programming. Simply turn on the cover and install the battery. Tighten the screws to protect the battery compartment. With the mini size, you can place near water pipe, washroom.Low Power Consumption--- Powered by 2 AAA batteries (not included), which consumes very little power and can last a year for the safety of your home. No low battery indicated, press the test button to check the battery, if the alarm sound is quiet, the battery should be change. Dripping and Leaking Alarm: The wireless water detector alerts you immediately just by touching water, so all you need to do is place the detector in the area of the leak. When water leaks, the wireless water detector emits a loud 90 decibel alarm to alert you to prevent leaks and water ingress. 90dB Alarm Once it detects water leak or drip, loud 90dB sound lasts one minute to ensure you won't miss any alarm Wireless and Easy to Use Small and Light Mini size allows you put it anywhere that the water leak or drip may happen How to Install the Battery water sensor specifications: BatteryAAA 1.5Vx2 (not include)Standby Current50uAProtocolIEEE 802.11b/g/nWireless Range: 50mOperating Temperature-10--4014--104Operating Humidity20%--85%Storage Temperature-10--6014--140Storage Humidity 20%--85%Detection mode: Water sense detectionInstallation mode: HangingWireless Type433mhzStandby Time4-6 monthsSize 100x45x24Detection line length: One meter