Features 1、*It can work alone or can be equipped with wireless host. Installation by double-side adhesive, easier and convenient to install. 2、*433MHz frequency, wireless transmission is more than or equal to 100 meters in open place. 3、*When the two feet of the detector was immersed by the water, it will give flash with 85db alarm sound and send alarm message to the alarm host. 4、*Excellent design, tiny and . Low-consumption design, which can make it work long time. 5、*Ideal water intrusion warning for homes, apartments(kitchen, toilet), warehouses, offices, laboratory, hotel rooms, garages, etc. 6、♥Security♥: This security Alarm puts whole-home security at your fingertips. Ideal intrusion warning for homes, apartments, mobile homes, dorms, offices, hotel rooms, garages, etc. 7、♥Low-consumption♥: Battery powered, Low-consumption chip design, which can make it work long time. It can also match the home decoration environment perfectly. 8、♥ Design♥: Excellent design, tiny and . Easily install with adhesive tape. 9、♥Convenient♥: Simply attach one piece to your door, window or cabinet door, and attach the other piece to the door or window frame. 10、♥Wireless Automation♥: Home Intrusion Detector detects movement between 1m to 100m. 100m wireless transmit distance. Specifications Overview: This item is a door and window alarm sensor. The door alarms can work with RF 433MHz Gateway Host to detect the door's opening status and immediately send alarm notification message to the APP. Features: *Simply attach one piece to your door, window or cabinet door, and attach the other piece to the door or window frame. *Ideal intrusion warning for homes, apartments, dorms, offices, hotel rooms, garages, shop counter, Internet bar, etc. *Excellent design, tiny and . Easily install with adhesive tape. *Low-consumption design, more power-saving. *100m wireless transmit distance. Specifications: Support Battery: 1*12V 23A ( Included) Wireless frequency: 433.92MHz Protocol: EV1527 Transmit distance: 100m (open) Quiescent current: ≤3μA Emission current: ≤15mA Trigger alarm distance: ≤20mm Operating environment: -10℃-50℃ (14℉-122℉) Size: Main body (D*W*H): 67*26*15mm Deputy body (D*W*H): 53*12*14mm Item Weight: 32g / 1.1oz Package Size: Approx. 7*3*2cm / 2.8*1.2*0.8in Package Weight: Approx. 37g / 1.3oz Packing List: 1 * Wireless Door / Window Sensor 1 * Set of Mounting Stickers Package List 1 * Wireless Door / Window Sensor 1 * Set of Mounting Stickers