Comparing to the pir motion sensor the photoelectric beam detectors employ active infrared technology which owns many unique advantages.
Wireless ir beam sensor.
The kwêbeam system has been designed to be effective easy to install.
One outdoor sensor with a keypad completes a fully operational outdoor alarm system.
The photoelectric beam sensors can provide long transmission distance up to 300 meters while the pir motion sensor only can have an approximate 110 degree 12 meters detection coverage.
About the wireless passive infrared beam.
Amazon s choice for wireless security beam alarm.
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