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Ensure your home safety with the Kidde CO Detector, designed to alert you to harmful carbon monoxide presence. Featuring LED indicators, a convenient test-reset button, and a low battery signal, this portable alarm keeps you protected day and night.

Sleek and large full-width product image showcasing the Kidde Carbon Monoxide Detector in its environment. The high-resolution image captures the device’s design, perfect for wall mounting or tabletop placement, emphasizing its practical and portable nature.

Detailed image highlighting Kidde CO detector's key features. Detects hazardous, odorless carbon monoxide gas that can originate from fireplaces, furnaces, gas-powered appliances, vehicles, and generators. Designed to keep you aware and protected at all times.

Carbon Monoxide (CO) is a colorless, odorless, and tasteless poisonous gas that poses a serious risk when inhaled. It is important to have reliable detection in your home to prevent potential poisoning.

Carbon monoxide can come from a variety of sources inside the home including malfunctioning fireplaces, furnaces, gas appliances, and vehicle exhaust. Proper detection ensures immediate alerts to hazardous levels.

More than half of pet owners cannot recognize the nonspecific symptoms of carbon monoxide poisoning in their pets. This highlights the importance of having a reliable CO detector to keep all members of your household safe.

Informational image illustrating smoke and carbon monoxide laws by region. Stay informed about regulations and ensure your home is compliant and safe with Kidde detectors.
| Comparison Features | ![]() Battery CO Alarm | ![]() Battery CO + Digi Display | ![]() 10-Yr CO Alarm | ![]() 10-Yr Digital Display CO | ![]() Hardwired CO Alarm |
|---|---|---|---|---|---|
| Customer Reviews | 4.7 out of 5 stars (36,710 reviews) | 4.7 out of 5 stars (19,511 reviews) | 4.6 out of 5 stars (674 reviews) | 4.7 out of 5 stars (1,655 reviews) | 4.6 out of 5 stars (1,020 reviews) |
| Price | $23.47 | $27.94 | $44.44 | $48.31 | $74.99 |
| Detection Type | Carbon Monoxide | Carbon Monoxide | Carbon Monoxide | Carbon Monoxide | Carbon Monoxide |
| Power Source | 2 AA Batteries (included) | 3 AA Batteries (included) | 10-Yr Built-In Battery | 10-Yr Built-In Battery | Hardwired; 9V Backup (included) |
| No Battery Changes/Night Chirp | — | — | ✔ | ✔ | — |
| Digital Display | — | ✔ | — | ✔ | ✔ |
| Mounting Options | Wall Mount & Tabletop | Wall Mount & Tabletop | Wall Mount & Tabletop | Wall Mount & Tabletop | Ceiling |
| Peak Level Memory | — | ✔ | — | ✔ | ✔ |
| Event Memory | — | — | ✔ | — | — |
| Tamper Resistant | — | — | — | — | ✔ |
| Interconnect Capability | — | — | — | — | ✔ |
| End of Life Notification | ✔ | ✔ | ✔ | ✔ | ✔ |
| UL Listed | ✔ | ✔ | ✔ | ✔ | ✔ |
One of those boring buys that actually helps me sleep better
We recently got a gas heater and I realized we didn’t have a single carbon monoxide detector in the house—instant anxiety. This one was super easy to set up: popped in the batteries, hit the test button, and it was good to go on our hallway wall. I like that it runs on batteries (so it still works in an outage) and the lights/alerts are very clear, but not obnoxious during normal use. Feels like a small thing that makes the house a lot safer.
Reliable CO detection and easy setup, but alarm is jarring and build feels basic
This carbon monoxide detector is extremely easy to set up—just pop in the included AA batteries and either mount it or place it on a shelf, no wiring needed. The green power light and loud 85 dB alarm with red LED make it very clear when it’s active or detecting something, and the event memory is reassuring for checking whether it’s gone off recently. On the downside, the alarm tone is very shrill (startling at night), and the overall plastic housing feels a bit cheaper than I’d like for a safety device. I’d still recommend it for renters, small homes, and anyone wanting a simple, battery-powered backup to complement hardwired detectors.
Battery-Powered Peace of Mind Beats My Old Wired Unit
I upgraded from a hardwired CO detector that constantly worried me during power outages. This battery-powered model with the clear green power light and loud 85 dB alarm feels more reliable day-to-day, and the event memory feature is something my old unit didn’t have—useful for checking if anything happened while we were away. The difference in convenience and reassurance is noticeable, and in this case the upgrade really does matter.