After discussing CO and alarms I was prompted to check our mains CO alarm
EI261ENRC.

Label says "Replace unit by August 2023" so that looks OK.

Hang on, there is another label which says "Replace sensor by August 2018"!

So I now have a job to do.

Which in turn prompts the question "Is there a standard base for mains
fire and CO sensors or do I have to potentially take them all back to bare
wires when they need replacing?".

Now checking if fire/smoke alarms also time out.

Cheers


Dave R


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David wrote:
So I now have a job to do.

Which in turn prompts the question "Is there a standard base for mains
fire and CO sensors or do I have to potentially take them all back to bare
wires when they need replacing?".

Why would you mess around? The only time you'll find out if your new sensor
works is if there's a dangerous situation, which is not the time to discover
your installation doesn't work.

You'll have to replace the unit in 3 years anyway, so why not replace the
whole thing for a new 10 years life? It's not like they're that expensive.

Now checking if fire/smoke alarms also time out.

They do.

Theo