Takexs PB Series Sensors feature double modulation frequency and phased-locked loop system which result in high-power beams that have 10x the maximum arrival distance and 100x maximum sensetivity. Simultaneous breaking of 4 beams is required to initiate an alarm, thus eliminating the most common causes of false alarms - small animals, falling leaves. Features -Anti-external light circuit provides tolerance for sunlight, mercury or fluorescent light. -Excellent tolerance for bad weather. -Confirm visual and audible beam alignment with Sound Check Function -Attentuation LED lights up when beam attenuates under a certain level. -AGC Circuit automatically maintains proper sensitivity depending on environmental conditions. -Special noise eliminator provides excellent RFI. -Special hood protects sensor against inclement weather Specifications -Detection System Quad, Active Infrared Beam -Wavelength 940nm -Modulation Double Pulse Modulation -Protection Distance Outdoors 50m (165ft) -Protection Distance Indoors 100m (330ft) -Signal Arrival Distance 500m (1650) -Response Time 50-700msec.
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