the door/window sensor is powered by solar and built-in 2400mAh lithium battery , no wiring and no need replace the battery frequently. 1 alarm receiver can connect up to 32 sensors,and 1 sensor can be connected to unlimited alarm receiver. door/window opening detected through the separation of the sensor’s body and the magnet.

Product Features

• 5 YEARS NO NEED REPLACE BATTERIES- The sensor is solar powered at daytime(indoor nature light is enough) and built-in 2400mAh lithium battery powered at night without home lights or the home lights are dark
• REALISTIC RANGE- the wireless range from the sensor to the base receiver is up to 600 feet(actual range will vary depending on the local terrain); the wireless range is enough to cover all the doors/windows in your house/office/shop/etc
• EXTREMELY RELIABLE- the gap between the sensor’s body and the magnet can be 15mm because of the powerful magnet, wider application for different windows and doors,and reduce the false alarms if the windows and doors which will be shaking easily by wind;the sensors adopt FSK+FHSS wireless transmission technology to avoid the other wireless frequency signal interference
• DIY DESIGN,SUPER EASY TO SET UP IN MINUTES-The KIT has been programmed already before shipped; the sensor is solar powered and battery powered, no need replace batteries frequently;wireless communication between the sensor and the alarm receiver,so the installation time can be as little as a few minutes
• FULLY EXPANDABLE SYSTEM- the kit includes 1 solar sensor and 1 AC/Battery powered alarm receiver.expandable up to 32 sensors and unlimited alarm receivers for complete coverage of your property. 4 volume levels adjustment and 35 ring tones optional. Match different ring tones with different sensors in your property to differentiate where motion is being detected