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The First Alert CO400 battery powered carbon monoxide detector with mute button is an easy-to-install, UL-listed alarm that combines advanced technology with a user-friendly design. Symptoms of carbon monoxide poisoning are like the flu, and you might not even know you're in danger. That's why a carbon monoxide alarm is an excellent way to protect your family. It detects the CO you can't see, smell or taste in the air. A single button tests alarm functions and mutes nuisance alarms. This alarm uses an electrochemical carbon monoxide sensor, which is the most accurate technology available. With battery backup, you will have peace of mind that the alarm will continue to work even when the power goes out. It's esthetically pleasing premium shape is ideal for placing in all visible location. The easy loading front access battery door allows you to quickly and easily change the alarms 2 AA batteries. 5-year limited warranty. Meets UL standards and is code compliant.
| Assembled Depth (in.) | 6.38 in | Assembled Height (in.) | 8.56 in |
| Assembled Width (in.) | 2.29 in | Battery Back-Up | Yes |
| Commercial / Residential | Commercial / Residential | Digital Display | No |
| Electrical Product Type | Carbon Monoxide Detector | Returnable | 90-Day |
| Test/Reset Button | Yes | Voltage (volts) | 9 V |
| Wired or Wireless | Wireless |
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Warranty
For warranty information on this product, please call our Internet Customer Service Center at 1-800-435-4654.
Please allow an additional 3-5 business days for Standard Ground Delivery in the U.S.
If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.
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