Carbon Monoxide Alarms | Plumbing Jobs | The Job-board | Page 2 | Plumbers Forums

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Truth is both smoke and CO detectors have a shelf life - around 10 years and 5 years respectively.
And (very) good practice is to renew the batteries, where fitted, every 12 months.
Next time you buy, make sure you are not buying old stock!
You can get good branded but cheap units on eBay that are 2, 3, 4 years old...
God help Average Joe and his old mum...
 

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