Smoke alarm replacement

[py_6294]

Hi all

Hallway smoke alarm has started to beep last few days

Been in this house couple of years, smoke alarms in my old house were just sticky back taped to the ceiling so thought replacing would be easy

Cannot see anywhere where a battery could be replaced in this alarm?

Thoughts and any product recommendations much appreciated

Many thanks

 

[sparkymarka]

AICO ….. swop all the smokes/ heat detectors at the same time , these are dicon / BRK units

 

[sparkymarka]

Toolstation

 

[Murdochcat]

That is a sealed unit. Can’t replace anything on it

Aico are the best, not the cheapest, but the best