BLACK+DECKER Carbon Monoxide Alarm - 10 Year Battery

The alarm is equipped with a sealed, tamper-proof lithium battery designed to last for the entire 10-year life of the unit. You will not need to replace the battery during this period.

The alarm will emit a specific chirp pattern (usually every 30-60 seconds) when the 10-year battery is nearing the end of its life and the unit needs replacement. It's recommended to replace the alarm approximately 10 years from the date of installation.

Install at least one alarm on every level of your home, including the basement. Place alarms in the hallway outside each separate sleeping area. For optimal detection, avoid placing alarms directly above furnaces, in kitchens, or near vents.

If the alarm activates due to CO detection, the red LED will continue to flash for 72 hours after CO levels return to normal. This indicates that CO was detected during your absence and serves as a reminder to check potential sources.

No, this BLACK+DECKER Carbon Monoxide Alarm is a standalone safety device. It does not connect to Wi-Fi or integrate with smart home platforms.

The alarm emits a loud 85 decibel (db) sound, designed to be heard clearly throughout your home.

This alarm is certified to BS EN 50291-1:2018 and BS EN 50291-2:2019 standards and is fully compliant with CE and UKCA marking requirements.

This could indicate high CO levels. Evacuate the premises and call emergency services. If it's a false alarm after CO has cleared, press the test/silence button. If it persists, test the unit; if the problem continues, the unit may need replacement.

Ensure the battery is properly seated (if applicable for initial setup before sealing) or that the unit has power. If the 10-year battery has reached its end-of-life (indicated by chirping), the entire unit needs replacement.

This typically signifies that the 10-year battery is depleted and the alarm needs to be replaced. Note the date of installation and replace the unit approximately 10 years from that date.

After an alarm event, the red light may flash for 72 hours to indicate CO was detected. If the alarm sounds without any suspected CO source and the test button does not silence it, ventilate the area and contact customer support or consider replacing the unit.