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AA Battery Operated Wireless Interconnect Talking Smoke & Carbon Monoxide Alarm with Wink App Compatibility

KN-COSM-B-RF-CA

The Kidde KN-COSM-B-RF-CA (P/N 900-0225CA) Combination Smoke & Carbon Monoxide Alarm provides two important safety devices in a single unit. This alarm includes a voice warning system that announces “Fire”, “Warning, Carbon Monoxide”, “Low Battery”, and “Caution, Carbon Monoxide Previously Detected.” The voice alarm eliminates any confusion and clearly warns you and your family of a smoke or carbon monoxide danger, or if your battery is in need of replacement.

  • Wireless Interconnect

  • Combined Smoke & Carbon Monoxide Alarm

  • Voice Warning

  • Hush® / Test / Reset Button

Helpful Resources
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Helpful Resources

Explore installation, operation, maintenance, and troubleshooting information for your Kidde alarm.

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Smoke detector being pressed by a woman reaching up; mounted on a white ceiling above a bright, neutral-toned living area.
A red fire extinguisher stands upright beside smoke and carbon-monoxide alarms and packaging, arranged on a light wooden table against a pale wall with a large red "#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.

*UL and CSA have not verified compatibility with Wink.