First Alert SA302 Dual System Smoke Detector "carbon monoxide beeping unit" Questions

...carbon monoxide unit periodically beeps and says something we can't hear because it is in the basement. It does'nt seem to be an alarm but we would like to remedy the problem replace the batteries ...

My Kidde carbon monoxide alarm keeps beeping every 30 seconds and I have put new batteries. Probably time to replace the unit as the do wear out

...that the unit is sensing carbon monoxide. If you are sure that none is present and the detector is mounted in a location suggested by the documentation, the detector is bad and should be

...carbon monoxide alarm keeps beeping and saying low battery and i don't have a manual how do i open it so i can change the battery? You will need to remove the unit from the ceiling to reveal the ...