What a silent alarm does and does not prove · review
A sealed 10-year alarm with a backlit digital display, the kind of model to put near a stove.
First Alert states a backlit display of temperature and CO concentration, a built-in 10-year battery and an 85 dB alarm.
A home CO alarm is built to hold off at low levels: see our UL 2034 page for the alarm windows. A silent alarm does not prove the air is free of CO.
If the alarm sounds, get everyone outside to fresh air and call 911 or the fire department from there. Check the replace-by date, and follow the manual and your local code on where to mount it.
Prices quoted in this text are dated readings and can differ from the live price at the top of the page.
| Power | Built-in 10-year battery |
|---|---|
| Display | Backlit, CO level and temperature |
| Sensor | Electrochemical |
| Alarm | 85 dB |
| Weight | 6.4 oz |
| Amazon reference | B011O2WW1C |
| EAN | 0029054014269 |
It can show a low reading that would not trigger the alarm, and that can be an early hint of spillage.
The listing says it is intended to sit on a dresser or table.
8.3/ 10
Our pick for a wood stove room: the display tells you what a silent alarm cannot.
This model is listed on Amazon.com, at ≈ $44 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.
Details checked on November 14, 2026.
The alarm nearest a wood stove, where you want to see a number.
Amazon reports what buyers took in the month before this page was last checked: at least 2,000.
The figure is a floor, rounded by Amazon, — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for wood heating equipment and the matching Amazon product page. Prices, ratings and availability: read on Amazon.com from a New York address. Every figure on this page names its source.
Same shelf, closest price — what the same spend else heats.
2 AA batteries · electrochemical · 85 dB · LEDs · Event Memory · portable
A small AA alarm with Event Memory, which records the last time it detected CO, with 2,356 ratings at 4.7 out of 5.
Best for: A cabin or travel alarm, or a second alarm at home.
≈ $25
plug-in · 9V backup · digital display · 85 dB · 3rd edition
The older Kidde plug-in with a digital display, a 9V backup and 28,356 ratings at 4.7 out of 5.
Best for: A buyer who trusts a long record over a newer model.
≈ $70
9V battery · electrochemical sensor · 7.2 oz · 10 to 95% RH
The default CO alarm: a simple 9V battery model with 22,134 ratings at 4.6 out of 5, with almost nothing written on the listing.
Best for: A second alarm near a stove or in a bedroom, on a budget.
≈ $22
