















🔒 Stay safe, stay smart—never miss a beat with First Alert CO605!
The First Alert CO605 is a plug-in carbon monoxide alarm featuring a reliable electrochemical sensor and battery backup to ensure continuous protection. Its loud audible alarm and easy installation make it an essential safety device for any home or office, combining trusted First Alert quality with compact, user-friendly design.







| ASIN | B000ND74XA |
| Alarm | Audible |
| Best Sellers Rank | #169,826 in Home Improvement ( See Top 100 in Home Improvement ) #559 in Home Security Alarms |
| Brand | First Alert |
| Colour | white |
| Country of Origin | USA |
| Department | Detecters |
| Generic Name | CO Alarm |
| Global Trade Identification Number | 00029054000682 |
| Included Components | Alarm, Battery |
| Item Weight | 119 g |
| Item model number | CO605 |
| Manufacturer | FIRST ALERT |
| Material | Plastic |
| Net Quantity | 1.0 Count |
| Number of Items | 1 |
| Operating Humidity | 10-95% RH |
| Power Source | Battery Powered |
| Product Dimensions | 3.5D x 12.7W x 8.6H Centimeters |
| Sensor Type | Electrochemical |
| Style | Plug in Alarm with Battery Backup |
| UPC | 029054000682 |
| Upper Temperature Rating | 105 Degrees Fahrenheit |
K**Y
Easy to plug in and good to have the peace of mind knowing it’s there. Our previous alarm got to end of life and started beeping - I would appreciate a little more clarity which beeps are end of life and which beeps are the alarm!
T**D
Just as expected
J**N
I ordered this as a replacement for the exact same product. It produced the ‘end of life’ warning seven years after installation almost to the day. I never had an issue with false readings, and when I had my furnace serviced, I had the tech check for built up fumes to see if the sensor had missed a build up, and it was not misreading. The plug in feature is great…no need to replace batteries!
J**I
Ended up getting this sooner than expected. It is so easy to ready and replace the old one. Very happy with it.
B**.
EXPENSIVE, BUT WORTH IT....HAD 3 YEARS ALREADY & NO ISSUES.
Trustpilot
2 weeks ago
2 weeks ago