Electronics Repair Questions? Ask an Electronics Technician
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This alarm is activated for the first time when it is attached to the mounting plate correctly.
Ensure you have aligned the alarm with the mounting plate and rotated it clockwise (right) approximately 45° until the unit stops and clicks into place.
If it didn't chirp, rotate the alarm counter clockwise, remove and rotate to the correct alignment again.
You will know it has been activated correctly when the alarm briefly chirps.
You can then try testing it again.
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