Securityman SM-87L Add-On Wireless Smart Door/Windowsensors for Air-Alarm (White)

Wireless Transmitting Distance Up To 450ft

23a 12v Alkaline Battery Lasts Up To 2 Years

4cm Alarm Distance

Host Led Light Flashes When Door Is Open

Host Chirps When Door Is Open & Closed

The Add-On Wireless Smart Door/Window Sensors for Air-Alarm II offers a wireless transmitting distance of up to 450 ft. and 4 cm alarm distance. The host LED light flashes when your door is open the host chirps when your door is opened and closed. this unit is fully compatible with Air-Alarm/IIB and downward compatible with Air-alarm I and Air-Alarm-DL without smart beep feature.
Brand: LINEAR, Model: SM-87L, Color: black