1、Radio transmission circuit and coding technology to solve the problem of signal interference blocking. 2、A variety of temperature modes can be adjusted, suitable for different scenarios. 3、Water immersion sensor (WS01), a sensor used to detect water immersion in the environment. 4、High‑performance, ultra‑low power consumption, long battery life, avoiding frequent battery replacements. 5、Low voltage monitoring function. Send status report to host on a regular basis. 6、Anti‑dismantling design in professional security field, split design, high reliability. 7、Wireless transmission of data signals, mobile phone remote monitoring. 1 x Water Leakage Detector(Battery Not Included)1 x English Manual Item Type: Water Leakage DetectorMaterial: PCColor: As shown in the pictureProduct Size: Approx. 5x5x 1.8cm / 2.0x 2.0x 0.7inWeight: Approx.35g/ 1.2ozBattery: 1 x CR2032 battery 3V(Not included)Type: Water level alarm detectorApplication: Home, outdoorAlarm Current: ≤30Alarm Method: APP pushCommunication Method: for zigbeeWorking Temperature: -10~50℃Function: A sensor used to detect the state of water immersion in the environmentBattery Installation Method:Use a thumb-sized button or a button battery to rotate to the left in the recess at the bottom of the sensor and unscrew the cover to install the battery (battery not included).Network Setting Method: Press the button on the front of the sensor, and then press the flash to set the network.