PIR's: Why trip on two detects?
I have a dual-tech motion detector and it has a dip-switch option to trip alarm on two consecutive detections instead of one. It claims to remove more false alarms. So, the next obvious question is why? Dual-tech is already very good at removing false alarms, so why would I want to wait for two detections when one should tell me that something's moving in the room? Anyone every use this option?
read more and respond »Posted 5 years ago by Total nerd in CCTV, Alarms and other Physical Security
