Kidde KN-COB-LP2 Portable Carbon Monoxide Detector
- Power Source: Battery
- Alarm: Audible
- Operating Humidity: 10 to 95% relative humidity (RH), non-condensing
- Item Weight: 0.23 pounds
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B0DT1MGCKKModel: 9CO5LP2Category: Carbon Monoxide Detectors
Overview
Battery-powered, portable carbon monoxide alarm from Kidde on an electrochemical sensor, sized to move between a wall mount at home and a nightstand on the road.
One reviewer flagged the lack of a numeric display, noting it as an acceptable trade-off for a travel-sized unit rather than a real complaint.
- Electrochemical sensor for CO detection
- 85 dB alarm with red and green LED status
- Runs on 2-AA batteries, no wiring needed
- Event memory logs last detection or test
Who it's for
Renters, travelers and campers who want a CO alarm that needs no wiring and can move between locations. Less suited to anyone who specifically wants a numeric ppm readout.
Pros and cons
- No digital CO ppm readout, LED and alarm only
- Battery-powered only, no AC or plug-in option
Performance notes
An electrochemical sensor detects CO and trips an 85 dB alarm along with a red LED, while a green LED confirms the unit has power. Event memory logs the last time CO was detected or the unit was tested, so a household can check its history without a screen.
Specifications
| Brand | Kidde |
|---|---|
| Model | 9CO5LP2 |
| Dimensions & fit | |
| Item Weight | 0.23 pounds |
| Item Dimensions D X W X H | 1.6 × 4.7 × 2.8 inches |
| Power & efficiency | |
| Power Source | Battery |
| Construction & materials | |
| Color | White |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Alarm | Audible |
| Operating Humidity | 10 to 95% relative humidity (RH), non-condensing |
| Number Of Items | 1 |
| Product Style | 3rd Edition |
| Mfr Part Number | 9CO5LP2, KN-COB-LP2 |
| Builtin Media | AA Batteries |
| Item Type Name | Carbon Monoxide Detector |
Frequently asked questions
Does the KN-COB-LP2 show an exact CO reading?
No, it signals through a red LED and an 85 dB alarm rather than a numeric display, a trade-off one reviewer called acceptable for a travel unit.