How to work:Fix the windowdoor sensor to the door,the door stripe to the doorside,and make sure when the door or window are closed,it can lean together. If the doors or windows are opened,the door stripe and door sensor are separately,the door sensor will send the singal to the alarm system,will automatic alarm.
Different from the general item on the market,the Infrared PIR Detector and the WindowDoors Sensor both are using 3M double-sided adhesive,strengthen the viscosity to prevent to fall off easily.
DoorWindow Alarm Sensor*2:Pair of magnetic sensor,ultra thin and sensitive,trigger an alarm once the “gate”open.Suitable for place at doors,windows,drawers or your personal box.Effectively and real-time protection for your home property sercurity and family safety.
Newest PIR Sensor*2:Adopt original red-dot PIR sensor,120°wide detection angel and up to 12m detection distance,high senstive and anti HF interference,with temperature compensation,no error will be issued,effectively avoid false alarm. Easy instation,recommend the installtion height is 1.8m-2.2m.
Tips:Working Voltage(2x AAA Battery)(Already includes for your convenient using),and if those accessories without battery,it will flash with red light.