How do I replace a sensor on a door?

Old 11-12-19, 08:32 AM
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How do I replace a sensor on a door?

Brinks BHS-3000B
Door chime blinks not ready
Old 11-12-19, 08:44 AM
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Not sure about this model but often it is that a small magnet that is drilled into the edge of the door has fallen out.
Old 11-12-19, 09:07 PM
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Is there a switch on the door or is it a wireless transmitter on the door ?

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