Kidde KN-COB-DP2 Plug-In Carbon Monoxide Detector
- Power Source: Corded Electric
- Sensor Type: Electrochemical
- Alarm: Audible
- Operating Humidity: 10 to 95% Relative Humidity, Non-Condensing
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A plug-in Kidde CO detector with battery backup and Peak Level Memory, best for a fixed outlet location rather than portable placement.
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ASIN: B00M48BH30Model: 900-0263Category: Carbon Monoxide Detectors
Overview
Kidde's plug-in carbon monoxide detector runs off a standard 120V outlet and keeps 2 AA batteries in reserve for outages, with a test-hush button built in for checks.
It plugs straight into a standard 120V outlet for everyday power, with the AA battery backup only kicking in if that power cuts out, the reverse setup from Kidde's fully portable AA model in this lineup. Peak Level Memory logs the last time CO was detected or the unit tested, giving a reference point even though there is no digital screen. The test-hush button covers both jobs, running a test and silencing a false alarm, from the same control.
- 120V plug-in power
- 85 decibel alarm
- Peak Level Memory
- AA battery backup included
Who it's for
Buyers who want a set-and-forget outlet-powered detector rather than one that runs on batteries as its primary power source.
Pros and cons
- Plugs into a standard outlet, no wiring
- 2 AA battery backup for outages
- Peak Level Memory
- Test-Hush button for testing or silencing
- No digital display
- Placement tied to an available outlet
Performance notes
Outlet power runs the unit under normal conditions, and the 2 AA battery backup exists specifically to keep it monitoring through a power failure rather than to run it day to day. That split is what lets Kidde skip a digital display here: the alarm, the test-hush button and Peak Level Memory cover the same core functions without the extra power draw a screen would add.
Specifications
| Brand | Kidde |
|---|---|
| Model | 900-0263 |
| Dimensions & fit | |
| Item Weight | 0.04 pounds |
| Item Dimensions D X W X H | 1.5 × 2.7 × 4 inches |
| Capacity & performance | |
| Upper Temperature Rating | 100 °F |
| Power & efficiency | |
| Power Source | Corded Electric |
| Construction & materials | |
| Color | White |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Manufacturer Warranty Description | 10-Year Limited Warranty |
| Other details | |
| Sensor Type | Electrochemical |
| Alarm | Audible |
| Operating Humidity | 10 to 95% Relative Humidity, Non-Condensing |
| Number Of Items | 1 |
| Product Style | Clamshell Packaging |
| Mfr Part Number | 900-0263 |
| Builtin Media | User Manual, Two AA Batteries |
| Item Type Name | Carbon Monoxide Detector |
Frequently asked questions
Does the Kidde plug-in CO detector still work if the power goes out?
Yes, it switches to its 2 AA battery backup during an outage.
What does Peak Level Memory do on the Kidde plug-in detector?
It records the last time carbon monoxide was detected or the unit was tested, so that information stays available later.
Can I silence a false alarm on the Kidde plug-in detector without unplugging it?
Yes, the test-hush button silences a false alarm and also runs a test on demand.