New Hampshire State Fire Marshal Sean P. Toomey recently reminded the public about the importance of working carbon monoxide alarms.

This detector has a battery backup, meaning it will continue to monitor carbon monoxide levels in the ... and will sound a chirp when it's time for replacement. This detector simply plugs into ...

Although a chirping smoke alarm can indicate a need for battery replacement ... Smoke alarms and carbon monoxide detectors often go hand-in-hand, so consider buying a smoke detector with carbon ...

If you’re looking for a smoke alarm that also detects carbon monoxide, this model gets the job done. It’s battery-operated with a photoelectric sensor for slow-burning, smoky fires ...

And after years of always getting a good test, the smoke and carbon monoxide alarms that were both hard-wired with battery back-ups in our home were no longer working. It seems like the 10-year ...