First Alert Carbon Monoxide Alarm 9V

First Alert Carbon Monoxide Alarm 9V

Do these have a fixed lifetime like smoke detectors do (their speck of radioactive material has a half-life). I wonder if these have been sitting idle for some time, slowly wearing out.

Not sure? We help Amazon move inventory on our Clearance site so we don’t have a lot of details. The features say it has an end-of-life beep, so I assume so?

here it is on Amazon:

If you’re not happy with it when you receive it, you can contact Woot customer support.

Though I was concerned about aged stock too, my previous orders of CO detectors here from Woot were all recent inventory, with a manufacturing date within a year. That’s fresher than the ones I bought from a local store before.

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