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How sensitive is my passive infrared sensor ?

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  • 20-11-2011 10:43pm
    #1
    2qk4u
    Registered Users Posts: 1,163 ✭✭✭


    How sensitive is my passive infrared sensor ?
    My house alarm went off at 8.30 this morning which is annoying as I only got into bed a 5am , the zone was my garage, looks like nothing has moved or fell over ect.
    Would a spider crawling on the sensor or a mouse on the floor set it off ?


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    #2
    altor
    Registered Users Posts: 11,719 ✭✭✭✭altor


    2qk4u wrote: »
    How sensitive is my passive infrared sensor ?
    My house alarm went off at 8.30 this morning which is annoying as I only got into bed a 5am , the zone was my garage, looks like nothing has moved or fell over ect.
    Would a spider crawling on the sensor or a mouse on the floor set it off ?

    If it is in a garage then a dual tech should be installed. Less prone to false alarms.

    www.altor.ie



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    #3
    2qk4u
    Registered Users Posts: 1,163 ✭✭✭2qk4u


    altor wrote: »
    If it is in a garage then a dual tech should be installed. Less prone to false alarms.

    Whats a dual tech ?


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    #4
    KoolKid
    Moderators, Home & Garden Moderators, Technology & Internet Moderators Posts: 24,789 Mod ✭✭✭✭KoolKid


    Its a duel technology PiR . They are designed for enviornments like garages conservatorys etc.
    Has this been in a while & only now stating to cause trouble.
    Try cleaning around it & open to see if there are any spiders inside.
    If all is clean & it keeps giving trouble I'd recommend it be replaced.


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    #5
    altor
    Registered Users Posts: 11,719 ✭✭✭✭altor


    2qk4u wrote: »
    Whats a dual tech ?

    Dual tech detectors use different technologies to make the less prone to false alarm activation's, They can be set up that you need both technologies to activate to trigger the alarm.

    www.altor.ie



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    #6
    Jnealon
    Registered Users Posts: 2,062 ✭✭✭Jnealon


    Could be spiders, clean around the detector and make sure all cable entry holes are sealed.
    If it happens again replace with a dt


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