First Alert Carbon Monoxide Alarm

The electrochemical sensor is a highly precise technology specifically designed to detect carbon monoxide. It works by triggering a chemical reaction when CO is present, providing a more accurate and reliable reading compared to older or less specialized sensor types.

Yes, the unit features a peak level memory function. You can check the digital display to see the highest concentration of carbon monoxide recorded since the last time the memory was cleared.

The alarm will emit a low-battery warning chirp to alert you that it is time for a change. If the chirp occurs at an inconvenient time, you can use the low-battery mute function to silence the alert for up to eight hours while you acquire fresh batteries.

No, this model is designed with an easy-access battery door on the front. You can replace the two AA batteries quickly without needing to detach the unit from its mounting bracket.

The device includes an integrated end-of-life warning indicator. When the sensor reaches the end of its functional lifespan, the alarm will signal that it is time to replace the entire unit to ensure your home remains protected.

Yes, because this unit is battery-operated, it provides continuous protection regardless of your home's electrical status. This makes it a reliable choice for monitoring during power outages.