Can anyone identify this for me please

Discussion in 'Alarms, CCTV & Telephones' started by LordFrederickIII, 22 Jun 2021.

  1. LordFrederickIII

    LordFrederickIII

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    Hi,

    Can anyone identify the block with four circles under the sensor? It's making an annoying buzzing sound apparently.

    Thanks
     

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  2. Scales

    Scales

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  4. bernardgreen

    bernardgreen

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    It is a "sound bomb" a very loud sounder, often used to drive intruders away as for some people it can be loud enough to be painful

    pne source is PUE611BF1B)
     
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  5. sparkymarka

    sparkymarka

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    Just disconnect one of the wires ….they can have feedback when installed with some bellboxes ( they supply a resistor with some bellboxes )
     
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