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Smoke alarms comparisons

A practical side-by-side for smoke alarms with the criteria that matter in local-first homes: local control, offline reliability, controller requirements, and ecosystem fit.

All smoke alarms →

Standout picks

Strongest overall pick

Aeotec SmokeShield (ZWA050)

Aeotec · HA: excellent · local: excellent

Adds local Z-Wave (incl. Long Range) reporting to well-built Ei 10-year alarms

Product notes →

Also strong on local control

Ecolink FireFighter FF-ZWAVE5-ECO

Ecolink · works offline: yes

It transmits the alarm signal over Z-Wave to Z-Wave JS entirely on the local mesh with no cloud.

Why it stands out →

Easiest starting point

frient Intelligent Smoke Alarm

frient · setup: easy

Home Assistant users who want smoke detection integrated into their automations

See buyer notes →

All smoke alarms, side by side

Filter, sort, and open "More" on any row for what it's best at, setup, power, and cloud posture. Prices are the last verified read where there is one; the rest show a price band.

Showing 10 of 10 Ordered by Home Assistant fit, then local control. Click a column heading to re-sort.

Smoke alarms compared: Home Assistant fit, offline behavior, protocols, hub requirement, price, and where to buy.
						Where to buy
Aeotec SmokeShield (ZWA050) Aeotec More Best for Ei Electronics alarm owners wanting local Z-Wave fire alerts Standout A Z-Wave 800-series / Long Range retrofit shield that snaps onto Ei Electronics 10-year smoke and heat alarms to report fire events locally over Z-Wave. Local control excellent Cloud local-first (none) Setup intermediate Power battery	excellent	yes	Z-Wave	yes	budget	Aeotec ↗
Ecolink FireFighter FF-ZWAVE5-ECO Ecolink More Best for Homes with existing interconnected smoke/CO alarms wanting local HA alerts Standout A Z-Wave audio sensor that listens for your existing UL-listed smoke/CO alarms' T3/T4 patterns and relays them to Home Assistant - no detector swap needed. Local control excellent Cloud local-first (none) Setup intermediate Power battery	excellent	yes	Z-Wave	yes	$39.99checked Sep 8	Amazon ↗ *
frient Intelligent Heat Alarm (HESZB-120) frient More Best for Kitchens, garages and attics where smoke detectors false-trigger Standout A Zigbee heat alarm that triggers on rapid temperature rise (not dust or steam), reporting locally to Home Assistant alongside a usable temperature sensor. Local control excellent Cloud local-first (none) Setup intermediate Power battery	excellent	yes	Zigbee	yes	mid	Frient ↗
frient Intelligent Smoke Alarm frient More Best for Home Assistant users who want smoke detection integrated into their automations Standout Certified smoke alarm with Zigbee connectivity that sounds locally and notifies Home Assistant. Local control excellent Cloud local-first (none) Setup easy Power battery	good	yes	Zigbee	yes	mid	Frient ↗
Heiman Smart Carbon Monoxide Alarm Heiman More Best for users who want a cross-platform smart CO alarm with local-only operation Standout Among the first Matter over Thread carbon monoxide alarms available, with cross-platform smart home support. Local control excellent Cloud local-first (none) Setup easy Power battery	good	yes	Matter, Thread	no	mid	Heiman ↗
Heiman Smart Smoke Alarm Heiman More Best for users who want a cross-platform smart smoke alarm that works with any Matter controller Standout One of the first Matter over Thread smoke alarms, working across all major platforms with no cloud. Local control excellent Cloud local-first (none) Setup easy Power battery	good	yes	Matter, Thread	no	mid	Heiman ↗
First Alert ZCOMBO-G Z-Wave Smoke/CO Alarm First Alert Discontinued More Best for Home Assistant users who want local smart smoke and CO alerts for automations Standout One of the few smoke and CO alarms with Z-Wave support for fully local smart home integration without any cloud dependency. Local control excellent Cloud local-first (none) Setup moderate Power battery	good	yes	Z-Wave	yes	$64.98checked Aug 28	Amazon ↗ *
Kidde Smart Smoke + CO Alarm Kidde More Best for homeowners who want interconnected smart smoke alarms with phone notifications Standout Wireless interconnect for multiple alarms with smartphone notifications and Alexa/Google voice status checks. Local control poor Cloud cloud-heavy (high) Setup easy Power hardwired	poor	yes	Wi-Fi	no	$74.97checked Sep 8	Amazon ↗ *
X-Sense Smart Wi-Fi Smoke Alarm (SBS50 base) X-Sense More Best for Users already invested in X-Sense who accept cloud reliance for HA visibility Standout A polished interconnected 10-year sealed-battery smoke alarm line whose only Home Assistant path is an unofficial cloud-polling HACS integration. Local control poor Cloud cloud-heavy (high) Setup intermediate Power battery	poor	no	Wi-Fi, RF	yes	mid	not listed
Google Nest Protect Smoke + CO Alarm Google Discontinued More Best for existing Nest Protect owners who want to surface alerts in Home Assistant via the community integration Standout Wireless interconnect with voice alerts that tell you the type and location of danger across every Nest Protect in your home. Local control poor Cloud cloud-heavy (high) Setup easy Power battery	poor	yes	Wi-Fi	no	premium	Google ↗