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what invisible thing could set off my smoke detector?

(I have carbon monoxide detectors that are not going off)

I have smoke detectors that are incorporated into my home alarm system. The other day, the one by my front door went off for no apparent reason, twice, and when I changed the batteries, it started alarming again immediately.

there was absolutely no reason for it, there were no open windows or doors nearby, it just went off. so, my alarm company replaced it. installed the new smoke detector yesterday and… it just went off again. completely different smoke detector.

there’s absolutely nothing in my house that could produce carbon monoxide, but I have separate CO detectors anyway that aren’t going off. there’s no smell, there’s nothing visible, and these are those electro optical photoelectric style ones.

shinigamiookamiryuu ,

Dust maybe? Dust can have the same particles as smoke.

Philote ,

I second the dust. Dust can collect on the sensor and trigger the alarm. You can try vacuuming or using a compressed air cleaner, or just replace.

pelletbucket OP ,

this is a brand new smoke detector. it’s all up in the original post

shinigamiookamiryuu ,

That itself could be its own reason. Manufacturing isn’t 100% perfect.

Fermion , (edited )

Look for an expiration date. Radionucleotide style detectors end up failing with false positives when they reach end of life. You might need to have all the old ones replaced.

pelletbucket OP ,

I used the wrong word, but this is a photoelectric detector. The manufacturer date is less than one year ago

Fermion ,

Sorry, I must have skimmed too quickly and missed that.

UnH1ng3d ,

A ghost 👻

pelletbucket OP ,

I wish he’d come over and tickle my balls instead of tickling my smoke detector

rustyfish ,
@rustyfish@lemmy.world avatar

Had to scroll way too long to find the right answer.

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