🚨 Stay ahead of danger with the CO400 — because your peace of mind can’t wait!
The First Alert CO400 is a UL-listed, battery-operated carbon monoxide detector featuring a 5-year electrochemical sensor, an 85dB alarm, and smart end-of-life alerts. Designed for easy placement without wiring, it ensures reliable, continuous CO monitoring to protect your home and loved ones—even during power failures.
| Brand | First Alert |
| Style | Battery Powered |
| Power Source | Battery Powered |
| Color | White |
| Product Dimensions | 1"D x 5"W x 3"H |
| Item Weight | 7.2 ounces |
| Alarm | Audible |
| Sensor Type | Electrochemical |
| Global Trade Identification Number | 00029054000699 |
| Material | Multi |
| Number of Items | 1 |
| Manufacturer | First Alert |
| UPC | 029054000699 |
| Part Number | CO400 |
| Country of Origin | Mexico |
| Item model number | CO400 |
| Batteries | 2 AA batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Size | Pack of 1 |
| Pattern | Detector |
| Voltage | 120 Volts |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Certification | UL2034 |
| Included Components | Alarm; Mounting Bracket; User Manual; 9V Battery |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Description Pile | 9V battery |
| Warranty Description | 5 Year Limited Warranty |
Trustpilot
2 days ago
3 days ago
