The Smart Device Compare comparison

Heiman Matter Smoke Detector S1-TM vs Kidde Smart Smoke + Indoor Air Quality Alarm

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Heiman Matter Smoke Detector S1-TM and Kidde Smart Smoke + Indoor Air Quality Alarm

A summary of selected recorded differences between these smoke & co detectors. Check the full specification table below for details and conditions.

Feature differences among your selected devices

Air Quality Alerts (alerts): Heiman Matter Smoke Detector S1-TM — No; Kidde Smart Smoke + Indoor Air Quality Alarm — Yes.
2.4 GHz Wi-Fi (connectivity): Heiman Matter Smoke Detector S1-TM — No; Kidde Smart Smoke + Indoor Air Quality Alarm — Yes.
Built In Light (features): Heiman Matter Smoke Detector S1-TM — No; Kidde Smart Smoke + Indoor Air Quality Alarm — Yes (LED status indicators, green for normal, amber for error, red for a hazard).
Steam Check (features): Heiman Matter Smoke Detector S1-TM — Yes (Dual-beam sensing tells smoke apart from steam and cooking fumes to cut false alarms); Kidde Smart Smoke + Indoor Air Quality Alarm — No.

Specifications to check side by side

Thread (connectivity): Heiman Matter Smoke Detector S1-TM — Thread Border Router required; Kidde Smart Smoke + Indoor Air Quality Alarm — No.
Battery Type (power): Heiman Matter Smoke Detector S1-TM — CR123A; Kidde Smart Smoke + Indoor Air Quality Alarm — Backup battery.

Information still to confirm

4 of 37 comparison fields lack a resolved value for at least one selected device. Missing information is not evidence that a feature is absent.
Check the full table and manufacturer documentation before ruling out a device.

These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.

Compare capabilities, compatibility and setup requirements.

Option 1 · Heiman

Heiman Matter Smoke Detector S1-TM

Last updated October 2026

View full device profile

Option 2 · Kidde

Kidde Smart Smoke + Indoor Air Quality Alarm

Last updated October 2026

View full device profile

What the catalog tells us

Understand the tradeoffs.

These counts describe the available data, not a quality score. More features do not automatically make a better device.

13differences with recorded values for every device

4rows with missing or unspecified information

Consider your setup

Apple Home

Heiman Matter Smoke Detector S1-TMYes
Kidde Smart Smoke + Indoor Air Quality AlarmNo

Confirm which features appear in Apple Home and whether extra hardware or a subscription is needed for your intended use.

Inspect the specifications

Consider your setup

Matter

Heiman Matter Smoke Detector S1-TMYes
Kidde Smart Smoke + Indoor Air Quality AlarmNo

Confirm the exact device type and the features exposed in your chosen platform. Protocol support does not establish feature parity across apps.

Inspect the specifications

Your priorities, side by side

Focus on what changes.

Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.

Differences onlyMy priorities (0)

Showing 37 of 37 rows. “Not recorded” does not mean “No”.

Reading layout

Alerts

Air Quality Alerts

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: Yes

Co Alerts

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Fire Alerts

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Local 85 dB alarm plus notifications through the Matter controller app
Kidde Smart Smoke + Indoor Air Quality Alarm: Yes

Low Battery Alerts

Heiman Matter Smoke Detector S1-TM: Yes
Kidde Smart Smoke + Indoor Air Quality Alarm: Yes

Temperature Alerts

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Connectivity

2.4 GHz Wi-Fi

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: Yes

5 GHz Wi-Fi

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Bluetooth

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Other

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Thread

Heiman Matter Smoke Detector S1-TM: Thread Border Router required
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Z Wave

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Zigbee

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Display

Screen

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Screen Type

Heiman Matter Smoke Detector S1-TM: Not applicable / unspecified
Kidde Smart Smoke + Indoor Air Quality Alarm: Not applicable / unspecified

Features

Automations

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Local Matter automations, no cloud required
Kidde Smart Smoke + Indoor Air Quality Alarm: Not recorded

Built In Light

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: Yes
Catalog note
LED status indicators, green for normal, amber for error, red for a hazard

Built In Siren

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
85 dB at 10 ft
Kidde Smart Smoke + Indoor Air Quality Alarm: Yes
Catalog note
85 dB alarm with spoken hazard announcements

Pathlight

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Steam Check

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Dual-beam sensing tells smoke apart from steam and cooking fumes to cut false alarms
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Tests Itself

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Push to test button, and the test can be triggered remotely from Home Assistant
Kidde Smart Smoke + Indoor Air Quality Alarm: Not recorded

Integrations

Alexa

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Kidde Smart Smoke + Indoor Air Quality Alarm: No
Catalog note
Alexa's smart home API has no smoke or CO alarm type: the only supported route is the Matter Smoke CO Alarm device type, which this alarm does not speak

Apple Home

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Google Home

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Kidde Smart Smoke + Indoor Air Quality Alarm: Yes

Home Assistant

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Kidde Smart Smoke + Indoor Air Quality Alarm: Yes
Catalog note
Community Kidde HomeSafe integration for Home Assistant (HACS), which lists this model

Matter

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Matter 1.4 over Thread; Heiman holds CSA Matter certificates for its smoke sensors with temperature and humidity reporting
Kidde Smart Smoke + Indoor Air Quality Alarm: No

SmartThings

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Power

Battery Life

Heiman Matter Smoke Detector S1-TM: 3.5 years
Kidde Smart Smoke + Indoor Air Quality Alarm: Not recorded

Battery Type

Heiman Matter Smoke Detector S1-TM: CR123A
Kidde Smart Smoke + Indoor Air Quality Alarm: Backup battery

Wired

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: Yes
Catalog note
Hardwired with battery backup

Sensors

Air Quality

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: Yes
Catalog note
Monitors total volatile organic compounds from cleaning products and paint

Ambient Light

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Humidity

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Built-in humidity sensor reported over Matter
Kidde Smart Smoke + Indoor Air Quality Alarm: Yes

Motion

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Occupancy

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Smoke

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Dual-beam photoelectric sensor, UL 217 10th Edition certified
Kidde Smart Smoke + Indoor Air Quality Alarm: Yes
Catalog note
Photoelectric sensor for smouldering fires

Temperature

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Built-in temperature sensor reported over Matter
Kidde Smart Smoke + Indoor Air Quality Alarm: No

Specifications for Heiman Matter Smoke Detector S1-TM versus Kidde Smart Smoke + Indoor Air Quality Alarm
Specification	Heiman Matter Smoke Detector S1-TM	Kidde Smart Smoke + Indoor Air Quality Alarm
Alerts
Air Quality Alerts	No	Yes
Co Alerts	No	No
Fire Alerts	Yes Catalog note Local 85 dB alarm plus notifications through the Matter controller app	Yes
Low Battery Alerts	Yes	Yes
Temperature Alerts	No	No
Connectivity
2.4 GHz Wi-Fi	No	Yes
5 GHz Wi-Fi	No	No
Bluetooth	No	No
Other	No	No
Thread	Thread Border Router required	No
Z Wave	No	No
Zigbee	No	No
Display
Screen	No	No
Screen Type	Not applicable / unspecified	Not applicable / unspecified
Features
Automations	Yes Catalog note Local Matter automations, no cloud required	Not recorded
Built In Light	No	Yes Catalog note LED status indicators, green for normal, amber for error, red for a hazard
Built In Siren	Yes Catalog note 85 dB at 10 ft	Yes Catalog note 85 dB alarm with spoken hazard announcements
Pathlight	No	No
Steam Check	Yes Catalog note Dual-beam sensing tells smoke apart from steam and cooking fumes to cut false alarms	No
Tests Itself	Yes Catalog note Push to test button, and the test can be triggered remotely from Home Assistant	Not recorded
Integrations
Alexa	Yes Catalog note Via Matter	No Catalog note Alexa's smart home API has no smoke or CO alarm type: the only supported route is the Matter Smoke CO Alarm device type, which this alarm does not speak
Apple Home	Yes Catalog note Via Matter	No
Google Home	Yes Catalog note Via Matter	Yes
Home Assistant	Yes Catalog note Via Matter	Yes Catalog note Community Kidde HomeSafe integration for Home Assistant (HACS), which lists this model
Matter	Yes Catalog note Matter 1.4 over Thread; Heiman holds CSA Matter certificates for its smoke sensors with temperature and humidity reporting	No
SmartThings	Yes Catalog note Via Matter	No
Power
Battery Life	3.5 years	Not recorded
Battery Type	CR123A	Backup battery
Wired	No	Yes Catalog note Hardwired with battery backup
Sensors
Air Quality	No	Yes Catalog note Monitors total volatile organic compounds from cleaning products and paint
Ambient Light	No	No
Co	No	No
Humidity	Yes Catalog note Built-in humidity sensor reported over Matter	Yes
Motion	No	No
Occupancy	No	No
Smoke	Yes Catalog note Dual-beam photoelectric sensor, UL 217 10th Edition certified	Yes Catalog note Photoelectric sensor for smouldering fires
Temperature	Yes Catalog note Built-in temperature sensor reported over Matter	No

Know what’s behind the comparison.

The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.

Read our comparison methodology