Features: This product detects leaks by the theory that the resistance changes when the electrode is applied. It adopts a smart MUC Detection with a stainless sensor that makes the detector work. The detector works stably and reliably with high precision and high sensitivity. The product can be widely used in water storage devices or places where water may leak, such as basement, machine room, warehouse, etc. Stainless steel sensor, low power, low voltage indication. Microcontroller removes various false alarms.SMT production technologies ensure stable operation. Function Introduction: When two sensors detect water, the red light on the detectors LEDs will turn on and transmit a wireless signal at the same time. The alarm system will transmit the signal information after receiving the wireless signal. Couple Anxiety Systems Only after the detector has a pair with an alarm system, the host of the alarm will receive a wireless signal from the detectors. Pairing Method: First, make the Host Alarm in the state of adding detectors. Second, touch the two sensors on the bottom of the detector manually. LED light will turn on for a long time. After the host receives a wireless signal from the detectors, it will make a beep or a voice prompt "add complete". Low Voltage Indication With a flash of light LED indication this means that it is in low voltage. Detector Compatibility Mode When the detector jumper cover is off, it is compatible with a common alarm host and does not have a low voltage indication. When the detector jumper cover is in the closed state, it is not compatible with a common alarm host and has a low voltage indication. Specifications: Condition: Brand New Material: ABS plastics Color: White Operating voltage: 3 V Power supply from: CR123A battery (included) Static electricity:≤ 10uA Alarm current: ≤ 65mA Signal indicator: Red LED Alarm output: 433 MHz Wireless distance: 100m (in open space) Operating temperature: 0-60°C Operating humidity: 0-80% RH (without overload) Low Voltage Indicator: 2V (LED flashes quickly) Package size: Approx.8*8*4cm/3.1*3.1*1.6in Weight: Approx.67g/2.4oz Package List: 1 * Water Leak Detector 1 * English User Manual 1、This product detects leaks by the theory that the resistance changes when the electrode is applied. 2、It adopts a smart MUC Detection with a stainless sensor that makes the detector work. 3、The detector works stably and reliably with high precision and high sensitivity. 4、The product can be widely used in water storage devices or places where water may leak, such as basement, machine room, warehouse, etc. 5、Microcontroller removes various false alarms.SMT production technologies ensure stable operation.