smoke alarm

Kidde Smart Smoke + CO Alarm

Kidde

mid local: poor Wi-Fi

Price: $74.97 verified Nov 4, 2026
HA fit: poor
Offline: yes
Setup: easy
Hub needed: no

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Kidde Smart Smoke and CO alarm with Wi-Fi connectivity

Quick verdict

The Kidde Smart Alarm is a solid choice if you want phone notifications on top of hardwired 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 official Home Assistant integration, and no documented public API. Buy it for the safety features, not for local smart-home control.

Standout: Hardwired interconnect with existing Kidde AC alarms, so when one sounds they all sound, plus app alerts and Alexa/Google voice status checks.

Notes last checked Nov 1, 2026.

Compatibility snapshot

Home Assistant poor

Apple Home none

Google Home good

Alexa good

Works offline yes

Setup easy

Extra hub needed no

Power hardwired

Why it stands out

hardwired interconnect with existing Kidde AC alarms, so when one sounds they all sound
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 official Home Assistant integration and no public API; community HACS components exist but poll Kidde's undocumented cloud API and can break without warning
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: no official integration; community HACS custom components (e.g. tache/homeassistant-kidde) poll Kidde's undocumented cloud API.

Buying reality check

Price notes: Affordable smart smoke + CO alarm. This Wi-Fi model is hardwired (120V AC) with 2 AA backup batteries; Kidde also sells battery-powered models. No subscription required.

Verified price reads: lowest seen $74.97, latest $74.97 on Nov 4, 2026.

Nov 4, 2026$74.97amazon
Oct 28, 2026$74.97amazon
Oct 21, 2026$74.97amazon
Oct 14, 2026$74.97amazon
Oct 7, 2026$74.97amazon
Oct 2, 2026$74.97amazon
Sep 8, 2026$74.97amazon
Sep 1, 2026$74.97amazon

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What changed for this product

Sep 6, 2026 · Corrected

29 product corrections after a source audit of 82 products

Every rating and spec sentence on 82 products was checked against the manufacturer page and the Home Assistant integration docs. Twenty-nine claims were wrong and are now fixed: six products rated a tier too kindly for cloud-only devices, two rated too harshly (the August lock has a local Bluetooth path; the Roomba integration is local push), a phantom Ethernet port, a sealed lithium backup described as two AA cells. Every product page now shows the sources it was checked against, and a link to report an error.

From the change log and the news briefs that name this product.