With low battery remind function
Low-consumption chip design, which can make it work long time.
High Sensitivity. Excellent design, tiny and fashion. Easily install with stickers.
Simply attach one piece to your door or window, and attach the other piece to the door or window frame.
Ideal intrusion warning for homes, apartments, mobile homes, dorms, offices, hotel rooms, garages, etc.
Overview:<br/>This is a door and window alarm sensor. The door alarms can work with alarm system. The door alarm sensor detects the opening status and immediately sends alarm. <br/><br/>Features:<br/>*With low battery remind function <br/>*Low-consumption chip design, which can make it work long time.<br/>*High Sensitivity. Excellent design, tiny and fashion. Easily install with stickers.<br/>*Simply attach one piece to your door or window, and attach the other piece to the door or window frame.<br/>*Ideal intrusion warning for homes, apartments, mobile homes, dorms, offices, hotel rooms, garages, etc.<br/><br/>Specifications:<br/>Battery: LR44*3<br/>Voltage: 4.5V<br/>Current: 60mA <br/>Volume: 120dB<br/>Action distance: ≥15mm<br/>Launch distance: ≥150m (open area)<br/>Quiescent current: ≤5μA<br/>Emission current: ≤10mA<br/>Battery life: 12-18 months<br/>Operating environment: -10℃-50℃ (14℉-122℉)<br/><br/>Package Information:<br/>Package Size: Approx. 11.5*6.5*4.5*cm<br/>Package Weight: Approx. 150g <br/><br/>Package List:<br/>4 * Wireless Door / Window Sensor<br/>1 * English manual