![Smoke And A Carbon Monoxide Alarm Mounted On The Ceiling Stock Photo, Picture and Royalty Free Image. Image 31967072. Smoke And A Carbon Monoxide Alarm Mounted On The Ceiling Stock Photo, Picture and Royalty Free Image. Image 31967072.](https://previews.123rf.com/images/leekris/leekris1409/leekris140900062/31967072-smoke-and-a-carbon-monoxide-alarm-mounted-on-the-ceiling.jpg)
Smoke And A Carbon Monoxide Alarm Mounted On The Ceiling Stock Photo, Picture and Royalty Free Image. Image 31967072.
![What is this sensor on my ceiling? The round one next to the smoke detector? Also, are smoke detectors also carbon monoxide detectors? : r/whatisthisthing What is this sensor on my ceiling? The round one next to the smoke detector? Also, are smoke detectors also carbon monoxide detectors? : r/whatisthisthing](https://i.redd.it/5m6z8em1elq01.jpg)
What is this sensor on my ceiling? The round one next to the smoke detector? Also, are smoke detectors also carbon monoxide detectors? : r/whatisthisthing
![How Long Do Smoke and Carbon Monoxide Detectors Last? | Business and Home Security Solutions | Northeast OhioHow Long Do Smoke and Carbon Monoxide Detectors Last? How Long Do Smoke and Carbon Monoxide Detectors Last? | Business and Home Security Solutions | Northeast OhioHow Long Do Smoke and Carbon Monoxide Detectors Last?](https://protechsecurity.com/wp-content/uploads/2016/07/How-Long-Do-Smoke-and-Carbon-Monoxide-Detectors-Last.jpg)