Kidde KN-COPP-B-LPM Battery Carbon Monoxide Detector
- Power Source: Battery
- Sensor Type: Electrochemical
- Alarm: Audible
- Operating Humidity: 5% to 95% relative humidity, non-condensing
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A portable, battery-only Kidde detector with LED status indicators and peak-level memory, suited to placement flexibility over a digital readout.
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ASIN: B004Y6V5CICategory: Carbon Monoxide Detectors
Overview
A portable, AA battery-powered carbon monoxide detector from Kidde with a test-hush button and LED status lights, for wall mounting or setting on a tabletop.
Two AA batteries, included in the box, power the unit, so it needs no wiring and keeps working through a power outage since it never depended on outlet power in the first place. A green LED confirms it is powered while a red LED joins the 85-decibel alarm when CO is detected, giving a visual signal alongside the sound. The test-hush button doubles as the test control and a way to silence a low-battery chirp without taking the unit down.
- 2 AA batteries included
- Test-Hush button
- UL listed
- 85 decibel alarm
Who it's for
Renters and anyone who wants a detector that is not locked to one outlet location, since it can sit on a shelf or table as easily as mount to a wall.
Pros and cons
- Portable, works on a tabletop or wall
- Green and red LED status indicators
- Peak Level Memory
- 10-year warranty on the alarm
- No digital display for the CO reading
- Warranty covers the alarm only, not battery performance
Performance notes
Electrochemical sensor technology drives the detection; Peak Level Memory then keeps a record of the last time CO was detected or the unit was tested, useful after the fact even without a digital screen. The 10-year limited warranty covers the alarm itself, not battery performance, and Kidde states the clock starts when the alarm is first powered on, so an unknown start date should be treated as reason to replace it.
Specifications
| Brand | Kidde |
|---|---|
| Dimensions & fit | |
| Item Weight | 0.01 pounds |
| Item Dimensions D X W X H | 1.5 × 4.5 × 2.7 inches |
| Capacity & performance | |
| Upper Temperature Rating | 100 °F |
| Power & efficiency | |
| Power Source | Battery |
| Construction & materials | |
| Color | Detector |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Manufacturer Warranty Description | 10 Year Limited |
| Other details | |
| Sensor Type | Electrochemical |
| Alarm | Audible |
| Operating Humidity | 5% to 95% relative humidity, non-condensing |
| Number Of Items | 1 |
| Product Style | 3rd Edition |
| Mfr Part Number | 21008873 |
| Builtin Media | Kidde Battery Operated Carbon Monoxide Alarm With Digital Display KN-Copp-B-LPM |
Frequently asked questions
Does the Kidde AA battery CO detector need to be mounted on a wall?
No. It is designed to be portable and can sit on a tabletop as easily as mount to a wall.
How do I know the Kidde detector is getting power?
A green LED stays lit to confirm power; a red LED joins the alarm if carbon monoxide is detected.
What does the test-hush button do on this Kidde detector?
It tests the unit on demand and can also silence a low-battery chirp without removing the detector.