Kidde COPDLG Carbon Monoxide and Explosive Gas Alarm
- Power Source: Corded Electric
- Sensor Type: Electrochemical
- Alarm: Audible, Visual
- 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.
Worth the step up from a standard CO-only alarm for a household that wants gas detection and an earlier low-level CO warning in the same plug-in unit.
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ASIN: B0G1CNQG7FCategory: Carbon Monoxide Detectors
Overview
Plug-in combination alarm from Kidde that adds natural gas and propane detection to standard CO monitoring, with a digital display that names which hazard tripped it.
This is a step up from a plain CO alarm: it adds a separate low-level CO alert tuned for children, older adults and pets, and its digital display prints the word GAS specifically when it senses explosive gas rather than carbon monoxide. It replaces the older Kidde 900-0113 and KN-COEG-3 models.
- Detects CO, natural gas and propane in one alarm
- Low-level CO pattern alerts at 30-70 ppm
- Digital display prints GAS for explosive gas
- Replaces older Kidde 900-0113 / KN-COEG-3
Who it's for
Households with young children, older adults or pets who want an earlier CO warning, plus anyone who wants one plug-in unit covering both CO and gas leaks. Less useful for someone who only needs basic CO detection.
Pros and cons
- Detects CO, natural gas and propane in one plug-in unit
- Low-level CO pattern alerts at 30 to 70 ppm
- Digital display prints GAS when explosive gas is present
- Replaces older Kidde model 900-0113 and KN-COEG-3
- 7-year warranty, shorter than Kidde's 10-year hardwired models
- Plug-in placement tied to an outlet
Performance notes
Two alarm patterns handle severity differently: a low-level pattern alerts at 30 to 70 ppm of CO, earlier than a standard alarm, aimed at occupants more sensitive to CO exposure, while a second pattern signals dangerous levels for everyone in the home. The digital display prints the word GAS when it detects natural gas or propane, so occupants know which hazard triggered the alarm instead of guessing.
Specifications
| Brand | Kidde |
|---|---|
| Dimensions & fit | |
| Item Weight | 0.6 pounds |
| Item Dimensions D X W X H | 1.9 × 2.9 × 5.5 inches |
| Capacity & performance | |
| Upper Temperature Rating | 100 °F |
| Power & efficiency | |
| Power Source | Corded Electric |
| Construction & materials | |
| Enclosure Material | Plastic |
| Color | White |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Manufacturer Warranty Description | 10-Year Limited Warranty |
| Other details | |
| Sensor Type | Electrochemical |
| Alarm | Audible, Visual |
| Operating Humidity | 10 to 95% Relative Humidity, Non-Condensing |
| Number Of Items | 1 |
| Product Style | 5th Edition |
| Builtin Media | AA Batteries, Carbon Monoxide Detector, Mounting Screws, User Guide |
| Item Type Name | Carbon Monoxide Detector |
| Item Highlight | Natural Gas And Propane Detection, Low-Level CO Alerts For Children, Seniors, & Pets, Digital Backlit Display, 5th Edition |
Frequently asked questions
What does the Kidde COPDLG detect besides carbon monoxide?
It also detects natural gas and propane, showing the word GAS on its digital display when explosive gas is present instead of CO.
Is the low-level CO alert different from a standard alarm?
Yes, it triggers a distinct light and sound pattern at 30 to 70 ppm, earlier than a standard threshold, aimed at protecting children, older adults and pets.
Does the Kidde COPDLG replace an older Kidde model?
Yes, it replaces model 900-0113 and KN-COEG-3.