This is a design with two infrared beam detection. When the intruder enters and runs across the infrared beams, alarm relay on the receiver gives reaction of output. This detector adopts simultaneous-block-alarm mode:only when the upper and lower two beams are blocked at the same time, alarm relay can detect and make an output. In this way, it can avoid false alarms caused by small animals, falling leaves, birds, etc.
Features:
The advanced twin series is available in four versions: 25 m,40 m, 60 m and 80 m
Powerful and reliable twin beams of pulsed infrared energy to reduce false alarms
Easy optical alignment with led indication
Adjustable beam interruption period
Anti-frost design
Target yellow colour, structure colour, is tuned to the peak wavelengths of human vision to be easily targeted in the beam alignment