What a silent alarm does and does not prove · review
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.
Kidde states an electrochemical sensor, 2 AA batteries, green and red LEDs, an 85 dB alarm and Event Memory.
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 | 2 AA batteries, included |
|---|---|
| Sensor | Electrochemical |
| Alarm | 85 dB |
| Memory | Last detection or test |
| Mounting | Wall or table |
| Amazon reference | B0DT1MGCKK |
| EAN | 0047871335091 |
A record of the last time CO was detected or the unit was tested.
No. It runs on 2 AA batteries, included.
8.5/ 10
A better basic alarm than most, for a little more money.
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 cabin or travel alarm, or a second alarm at home.
Amazon reports what buyers took in the month before this page was last checked: at least 10,000.
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.
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
plug-in · 10-year battery backup · foldable plug · electrochemical · travel size
A foldable plug-in detector with a 10-year backup battery, small enough for travel.
Best for: Travel, or a low-cost spare.
≈ $27
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.
