Uses an advanced electrochemical CO sensor to detect elevated carbon monoxide levels from a variety of sources Equipped with a test switch, an 85-decibel horn, and a red LED power indicator Silence options can temporarily silence both alarm and low-battery chirp Alarm cover locking pin helps prevent tampering and battery removal Convenient end-of-life chirping signal Includes a 9-volt battery and all necessary mounting hardware Provides early carbon monoxide warning in homes, apartments, hotels, hospitals, and other spaces
| Make | First Alert |
|---|---|
| Manufacturer | First Alert / BRK Brands Inc. |
| Model code | CO250B |
| Type | Gas |
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