Smoke and carbon monoxide alarm mounted flush to a white ceiling, green LED illuminated; circular housing and vent slots visible against a plain white background.

Battery Powered Smoke & Carbon Monoxide Detector

900-CUDR

The Battery Powered Smoke & Carbon Monoxide Alarm (2-AA batteries included), is equipped with self-testing components that are always checking to make sure the alarm is on and working. This smoke and CO combo alarm helps protect you and your family from 2 dangerous threats – fire and carbon monoxide – in one unit. What’s more, the included mounting bracket makes installation quick and easy. Battery powered smoke alarms provide reliable detection even during power outages, for extra peace of mind.

  • 2-in-1 Detection – Alerts you to both smoke & carbon monoxide (CO) using a single unit.

  • Easy-Install Mounting Bracket – Included for simple, quick installation in 4 orientations.

  • Self-Testing - Smoke & CO alarm is equipped with components that are always checking to ensure the device is operating as expected.

  • Photoelectric Smoke Sensor - May detect visible fire particles associated with slow smoldering fires sooner than an ionization sensor.

Helpful Resources

Upgrade to

This model is to be replaced with 30CUDR

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Smoke and carbon monoxide alarm (Kidde) shows a green LED; circular white housing with ventilation slots mounted on a ceiling-like surface against a dark background.View Product
Smoke and carbon monoxide alarm mounted flush to a white ceiling, green LED illuminated; circular housing and vent slots visible against a plain white background.
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Helpful Resources

Click on the video to learn more about how to install your Kidde Smoke and Carbon Monoxide alarm.

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A red fire extinguisher and three Kidde smoke/CO detectors (one boxed) stand arranged on a light wood tabletop against a pale wall, accompanied by a round "#1" safety-brand badge.

Why Kidde

As North America's #1 home fire safety brand,* Kidde has been working to help make your home the safest it can be for more than 100 years. Now, our latest smoke alarms and combination smoke + carbon monoxide (CO) alarms are bringing you the next level of fire and CO safety. Help protect what matters most in your life with features like cutting edge technology that send fast alerts to give your family more time to get out safely. And enhanced sensing technology that reduces false alarms often caused by cooking.

*Based on total household installations as of December 2023.

Self-testing is not a substitute for a manual push test of the alarm. Perform a button test once per week to verify proper alarm operation.