Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset

The Kidde Carbon Monoxide Detector provides dedicated protection against carbon monoxide gas using electrochemical sensor technology. Operating entirely on two included AA batteries, it serves homeowners and renters who want a standalone safety alarm that requires no hardwired electrical connection.

Because it runs on battery power, the unit remains fully active during power failures when heating equipment might still be running. Setting it up is straightforward and flexible, allowing you to mount it onto a wall or simply set it upright on a tabletop or shelf. Visual status is straightforward: a green LED confirms operational power, while a bright red LED pairs with a loud 85-decibel horn to signal the presence of carbon monoxide.

Daily maintenance and monitoring are supported by built-in utility functions. A front-facing Test-Hush button lets you verify the horn and circuitry or silence the low battery chirp when replacements are due. It also features Peak Level Memory, which records the last time the unit detected carbon monoxide or underwent a manual test.

As a battery-operated device, ongoing maintenance requires swapping out standard AA batteries when the unit alerts you. The unit comes UL listed with a 10-year limited manufacturer warranty on the alarm itself, though this coverage does not extend to battery performance. If the original power-on date is unknown, the manufacturer advises assuming replacement is necessary.

Verdict: This detector is a practical, dependable choice for anyone needing flexible carbon monoxide protection without running wires. It delivers vital safety monitoring, tabletop or wall-mount placement, and reliable battery backup for any home.

A great fit if you:

• Need a carbon monoxide alarm that stays powered during electrical outages.
• Prefer an easy setup with wall-mount or tabletop placement options.
• Want convenient features like event memory and a single test and silence button.
• Rely on standard, replaceable AA battery power.

Consider something else if you:

• Require a hardwired unit integrated with a whole-home electrical system.
• Prefer a device with a built-in digital parts-per-million display.

What kind of batteries does this alarm use?
It runs on two AA batteries, which are included in the package.

How do the indicator lights and alerts work?
A green LED indicates that the unit is powered, while a red LED and an 85-decibel alarm activate when carbon monoxide is detected.

What is Peak Level Memory?
Peak Level Memory records the last time carbon monoxide gas was detected or the last time the device was tested.

What does the manufacturer warranty cover?
It includes a 10-year limited manufacturer warranty that applies to the alarm unit only, not the batteries, starting from when the device is first powered on.