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Hello,
We have a DETA carbon monoxide alarm Model 1121 which is now giving an end of life beep after 5.5 years so we would like to replace. Can anyone recommend a replacement that will fit the wall fitting so its easy for us to replace and also would prefer one with a battery backup.
I think the 1121 model may be discontinued, I am seeing BRK models that look very similar.
Regards
We have a DETA carbon monoxide alarm Model 1121 which is now giving an end of life beep after 5.5 years so we would like to replace. Can anyone recommend a replacement that will fit the wall fitting so its easy for us to replace and also would prefer one with a battery backup.
I think the 1121 model may be discontinued, I am seeing BRK models that look very similar.
Regards