What is the difference between a PIR and a dual detector?

Carolina Bachenheimer-Schaefer
06.10.2016 12:11

The Passive Infra-Red Detector detects movement solely using an infrared “thermal changes” monitoring criterion.
A dual detector detects movement with two technologies in combination: one is evaluation with passive infrared as used in the PIR detector and another uses“HF” microwave radiation as well. Both criteria must be met for the detector to trigger.

Tags: Alarm, APP, Motion Detection
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