A person holds a CO alarm above a suitcase full of clothes.

Carbon Monoxide Alarms

Carbon Monoxide (CO) may be invisible, but the right alarm makes it easier to know it’s there. Choose from battery, plug‑in and smart models designed to fit your life — and give you real peace of mind. 

Search Results

1 - 12 of 24 Results

New!

White Kidde carbon monoxide alarm shows a glowing green status LED and vent grille; close-up view of its rounded front mounted against a white ceiling.

Battery powered Carbon Monoxide alarm

Product ID: COB-CA

New!

Carbon monoxide alarm (Kidde) showing a blue digital readout and green status LED, with test/silence and peak-level buttons visible; photographed close-up against a white ceiling/background.

Battery powered Carbon Monoxide alarm with digital display

Product ID: COBD-CA

New!

Carbon monoxide alarm displays a green status light and test button; mounted against a white background, close-up shows its rounded top with vents and printed instructions.

10 Year battery powered Carbon Monoxide alarm

Product ID: COB10-CA

New!

Kidde carbon-monoxide alarm displaying "Err" on a blue digital screen, green status LED illuminated; test/hush and peak-level buttons visible in a close-up, white ceiling-mounted context.

10 Year battery powered Carbon Monoxide alarm with digital display

Product ID: COBD10-CA

New!

Carbon monoxide alarm shows a blue digital readout and green status LED, with labeled Test/Hush and Peak Level buttons; white plastic housing mounted flush against a white ceiling.

Battery powered Carbon Monoxide alarm with low level alert detection

Product ID: COBDL-CA

New!

Kidde carbon-monoxide alarm displaying "Err" on a blue digital screen, green status LED illuminated; test/hush and peak-level buttons visible in a close-up, white ceiling-mounted context.

10 Year battery powered Carbon Monoxide alarm with digital display and low level alert detection

Product ID: COBDL10-CA

New!

Kidde carbon monoxide alarm shows its front speaker grille and a glowing green test/reset button, mounted and centered in a close-up against a minimal white background.

Plug-in Carbon Monoxide Alarm with AA backup battery

Product ID: COP-CA

New!

A white Kidde carbon monoxide alarm displays a blue digital readout with error-like characters, a speaker grille and two control buttons; the device is centered and cropped against a plain white background.

Plug-in Carbon Monoxide Alarm with AA backup battery and digital display

Product ID: COPD-CA

New!

Carbon monoxide alarm displays a blue digital error code and vent slots; Kidde branding visible on the rounded white unit mounted against a plain white background.

Plug-in Carbon Monoxide Alarm with 10 Year backup battery, digital display and low level alert detection

Product ID: COPDL10-CA

New!

A white Kidde carbon-monoxide alarm signals detection while a smartphone screen displays a red CO alert; both devices are shown side-by-side against a plain white background.

Smart Carbon monoxide with digital display, plug-in with AA backup battery

Product ID: COPDW-CA

New!

White Kidde gas and carbon monoxide alarm, top half visible, displays a blue "CLr" message on a digital screen; small speaker vent and green status LED visible against a plain white background.

Plug-in Carbon Monoxide alarm with digital display, low level and explosive gas detection

Product ID: COPDLG-CA

New!

A white wall-mounted carbon monoxide and indoor air-quality alarm displays a small LCD reading while paired smartphone shows a "Good" healthy-air score and sensor data against a plain white background.

Smart Carbon monoxide with Indoor air quality monitoring, digital display, plug-in with AA backup battery

Product ID: COPDLQW-CA