Kidde Smart Smoke + CO Alarm

Quick verdict

The Kidde Smart Alarm is a solid choice if you want phone notifications and wireless interconnect at a reasonable price. It works with Alexa and Google Assistant for voice status, but from a local smart-home perspective it is a dead end: no Apple Home, no Home Assistant integration, and no public API. Buy it for the safety features, not for local smart-home control.

Standout: Wireless interconnect for multiple alarms with smartphone notifications and Alexa/Google voice status checks.

Last checked: 2026-05-31

Compatibility snapshot

Why it stands out

• wireless interconnect links multiple alarms so they all sound together
• smartphone notifications tell you which alarm triggered and whether it was smoke or CO
• voice status checks via Amazon Alexa and Google Assistant

Reasons to hesitate

• no Home Assistant integration and no public API
• cloud-dependent for all smart notification features
• no Apple Home support (works with Alexa and Google Assistant only)

Best for

• homeowners who want interconnected smart smoke alarms with phone notifications
• Alexa or Google households that want voice status checks on their alarms

Avoid if

• you want to integrate smoke alarms into Home Assistant or any other local platform
• you want Apple Home support or cloud-free local control

Privacy and local-control notes

Cloud-dependent for smart notifications. The Kidde app requires an account and sends alerts through their servers. The alarm itself functions normally without internet.

Home Assistant support: not currently recommended · integration path: none.

Buying reality check

Price notes: Affordable smart smoke + CO alarm. This WiFi model is hardwired (120V AC) with a sealed backup battery; Kidde also sells battery models. No subscription required.

Compare side by side: see smoke alarm comparisons →