The Watchguard 2020?½ ALC-BEAM1 wireless infrared multi-beam sensor detects intrusion by creating a curtain of 4 x invisible infrared beams. It is ideal for use indoors or outdoors, on fences, balconies, garage doors and more.
?½ Maximum detection range up to 6m
?½ Wireless frequency: 433.92MHz (¶ñ75KHz)
?½ Wireless transmission distance to WG2020 alarm up to 80m
?½ IP66 weather resistant & UV-resistant polycarbonate body for outdoor use
?½ Completely wireless: Battery standby life up to 3 years
?½ 2 x CR123A (transmitter), 3 x CR123A (receiver)
?½ Compact housing at 47mm x 47mm x 612mm