First Alert CO710 10-Year Battery Carbon Monoxide Alarm
- Power Source: Battery
- Sensor Type: Electrochemical
- Alarm: Audible
- Operating Humidity: 10-95% RH
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A sealed, 10-year battery CO alarm with a digital display for both temperature and CO level, built around not needing maintenance rather than being repairable.
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ASIN: B011O2WW1CModel: CO710Category: Carbon Monoxide Detectors
Overview
A 10-year battery carbon monoxide alarm from First Alert with a backlit digital display showing temperature and CO concentration. Model CO710 suits buyers who want to set it once and not touch the battery again.
A built-in 10-year lithium battery runs the whole unit, so there is no battery to swap and no outlet needed, trading that convenience for a fixed lifespan rather than a replaceable power source. The digital display adds a temperature reading alongside CO concentration and keeps a peak-level record of the highest level measured. First Alert backs it with a 10-year limited warranty that matches the battery's rated life, so the warranty and the battery are meant to run out together.
- 10-year sealed lithium battery
- Digital temperature and CO display
- 85 decibel alarm
- End-of-life chirp
Who it's for
Buyers who want a CO alarm they install once and do not maintain again, in exchange for replacing the whole unit rather than a battery when it reaches end of life.
Pros and cons
- 10-year built-in lithium battery, no swaps
- Digital display shows temperature and CO level
- Peak level memory
- 10-year warranty matches the battery life
- Battery not user-replaceable, unit replaced at end of life
- No outlet or plug-in power option
Performance notes
The electrochemical sensor handles detection, while the built-in lithium battery is sized to power both the sensor and the digital display for the alarm's full rated life. Because the battery is not user-replaceable, the end-of-life chirp is the only maintenance signal this unit gives, at which point the whole alarm is replaced rather than serviced.
Specifications
| Brand | First Alert |
|---|---|
| Model | CO710 |
| Dimensions & fit | |
| Item Weight | 0.4 pounds |
| Item Dimensions D X W X H | 0.9 × 4.8 × 2.6 inches |
| Power & efficiency | |
| Power Source | Battery |
| Construction & materials | |
| Enclosure Material | Plastic |
| Color | White |
| Compatibility & installation | |
| Compatible Devices | Standalone |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Manufacturer Warranty Description | 10-Year Limited Warranty |
| Other details | |
| Sensor Type | Electrochemical |
| Alarm | Audible |
| Operating Humidity | 10-95% RH |
| Number Of Items | 1 |
| Product Style | 10 Year Battery With Digital Display |
| Mfr Part Number | CO710 |
| Item Type Name | Carbon Monoxide Alarm With 10-Year Battery And Digital Temperature Display |
| Item Highlight | CO710 |
Frequently asked questions
Can I replace the battery in the First Alert CO710?
No, it uses a built-in 10-year lithium battery that is not designed to be swapped; the alarm is replaced as a whole unit at end of life.
Does the First Alert CO710 show temperature as well as CO level?
Yes, its backlit digital display shows both temperature and carbon monoxide concentration.
How long is the First Alert CO710 covered under warranty?
It carries a 10-year limited warranty, matching the rated life of its built-in battery.