What a silent alarm does and does not prove · review
The newer Kidde alarm, which names the UL 2034 5th Edition and carries a 10-year limited warranty.
Kidde states UL 2034 5th Edition, ETL listing, an 85 dB alarm, an LED warning light, test/hush and a 10-year limited warranty.
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.
| Power | AA batteries, included |
|---|---|
| Sensor | Electrochemical |
| Standard | UL 2034 5th Edition, ETL listed, stated |
| Alarm | 85 dB |
| Button | Test/hush |
| Warranty | 10-year limited |
| Amazon reference | B0G1CR88J9 |
| EAN | 0047871337972 |
The edition of the CO alarm standard named on this listing. See our UL 2034 page for what the standard requires.
Check the manual. The table gives an upper limit of 100 °F and no lower limit.
8.3/ 10
Our pick for a plain alarm: a specific listing that names UL 2034 5th Edition.
This model is listed on Amazon.com, at ≈ $25 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.
A buyer who wants the standard named in writing.
Amazon reports what buyers took in the month before this page was last checked: at least 6,000.
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
plug-in · 2 AA backup · backlit display · 85 dB · UL 2034 5th Edition stated · rotating plug
A plug-in alarm with a CO display, a rotating plug and AA backup, naming UL 2034 5th Edition.
Best for: A bedroom or a stove room with a convenient outlet.
≈ $44
The price beside each product is fetched as this page opens, and it is the only figure here that is current. Any amount written into the prose was read once, on the day that sentence was written, and nothing has refreshed it since.
