New answers tagged smoke-detectors
3
votes
What is this device in my ceiling making out of battery chirps?
In the UK smoke detectors (and heat detectors in kitchens) are required to be replaced after ten years and are sold with expiry dates. The chirps from a depleted backup battery are the same.
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32
votes
What is this device in my ceiling making out of battery chirps?
It's a smoke detector made by First Alert. It's sold by Lowe's and others. It's hardwired, hence the wires. The chirping means that the backup battery is low.
You could remove it, but there's no harm ...
- 8,502
4
votes
Are wired, interconnected smoke detectors using 14ga conductors considered an "Non-power-limited Fire Alarm System" in the language of the 2023 NEC?
No, but this requires looking at NFPA 72 to figure out
The NEC defines fire alarm circuits as being involved with a fire alarm system, but doesn't define what a "fire alarm system" is, so we ...
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