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PIR placement

Discussion in 'Electronic Repair' started by M.Joshi, Oct 27, 2006.

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  1. M.Joshi

    M.Joshi Guest

    Hello,

    Should PIR sensors be placed facing away from a window to avoid fals
    triggering
     
  2. Franc Zabkar

    Franc Zabkar Guest

    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
     
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