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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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PIR placement
Hello,
Should PIR sensors be placed facing away from a window to avoid false triggering? |
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Posted to sci.electronics.repair
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PIR placement
On Fri, 27 Oct 2006 08:01:00 +0100, M.Joshi
put finger to keyboard and composed: Should PIR sensors be placed facing away from a window to avoid false triggering? You should put them on the opposite wall to avoid false triggering by rustling curtains. Place them in a corner so that they face across the window, not directly at it. A PIR is most sensitive when an intruder moves across it rather than toward it. For more reliable triggering, I'd suggest a dual sensor, ie one that combines a PIR and a microwave detector. The latter is insensitive to heat variations. - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
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