The Smart Device Compare comparison

Heiman Matter Smoke Detector S1-TM vs Heiman Smart CO 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 Heiman Smart CO 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

Co Alerts (alerts): Heiman Matter Smoke Detector S1-TM — No; Heiman Smart CO Alarm — Yes (Real-time CO alerts on smartphone via Matter hub).
Fire Alerts (alerts): Heiman Matter Smoke Detector S1-TM — Yes (Local 85 dB alarm plus notifications through the Matter controller app); Heiman Smart CO Alarm — No.
Built In Light (features): Heiman Matter Smoke Detector S1-TM — No; Heiman Smart CO Alarm — Yes (Flash alarm).
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); Heiman Smart CO Alarm — No.

Specifications to check side by side

Battery Life (power): Heiman Matter Smoke Detector S1-TM — 3.5 years; Heiman Smart CO Alarm — 10 years.

Information still to confirm

1 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 · Heiman

Heiman Smart CO 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.

10differences with recorded values for every device

1rows with missing or unspecified information

Consider your setup

Battery Life

Heiman Matter Smoke Detector S1-TM3.5 years
Heiman Smart CO Alarm10 years

Compare the stated test conditions. Catalog battery figures alone do not predict runtime in your home.

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
Heiman Smart CO Alarm: No

Co Alerts

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: Yes
Catalog note
Real-time CO alerts on smartphone via Matter hub

Fire Alerts

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Local 85 dB alarm plus notifications through the Matter controller app
Heiman Smart CO Alarm: No

Low Battery Alerts

Heiman Matter Smoke Detector S1-TM: Yes
Heiman Smart CO Alarm: Yes

Temperature Alerts

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

Connectivity

2.4 GHz Wi-Fi

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

5 GHz Wi-Fi

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

Bluetooth

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

Other

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

Thread

Heiman Matter Smoke Detector S1-TM: Thread Border Router required
Heiman Smart CO Alarm: Thread Border Router required

Z Wave

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

Zigbee

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

Display

Screen

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

Screen Type

Heiman Matter Smoke Detector S1-TM: Not applicable / unspecified
Heiman Smart CO Alarm: Not applicable / unspecified

Features

Automations

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Local Matter automations, no cloud required
Heiman Smart CO Alarm: Yes
Catalog note
Triggers smart home actions when CO is detected

Built In Light

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: Yes
Catalog note
Flash alarm

Built In Siren

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
85 dB at 10 ft
Heiman Smart CO Alarm: Yes
Catalog note
Audio alarm at least 85dB

Pathlight

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO 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
Heiman Smart CO 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
Heiman Smart CO Alarm: No

Integrations

Alexa

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Heiman Smart CO Alarm: Yes
Catalog note
Via Matter over Thread

Apple Home

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Heiman Smart CO Alarm: Yes
Catalog note
Via Matter over Thread

Google Home

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Heiman Smart CO Alarm: Yes
Catalog note
Via Matter over Thread

Home Assistant

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Heiman Smart CO Alarm: Yes
Catalog note
Via Matter over Thread

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
Heiman Smart CO Alarm: Yes
Catalog note
Matter over Thread (Thread Border Router required)

SmartThings

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Heiman Smart CO Alarm: Yes
Catalog note
Via Matter over Thread

Power

Battery Life

Heiman Matter Smoke Detector S1-TM: 3.5 years
Heiman Smart CO Alarm: 10 years

Battery Type

Heiman Matter Smoke Detector S1-TM: CR123A
Heiman Smart CO Alarm: CR123A

Wired

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

Sensors

Air Quality

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

Ambient Light

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: Yes
Catalog note
FIGARO TGS5141 electrochemical sensor, 0 to 600ppm

Humidity

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Built-in humidity sensor reported over Matter
Heiman Smart CO Alarm: No

Motion

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

Occupancy

Heiman Matter Smoke Detector S1-TM: No
Heiman Smart CO Alarm: No

Smoke

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Dual-beam photoelectric sensor, UL 217 10th Edition certified
Heiman Smart CO Alarm: No

Temperature

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Built-in temperature sensor reported over Matter
Heiman Smart CO Alarm: No

Specifications for Heiman Matter Smoke Detector S1-TM versus Heiman Smart CO Alarm
Specification	Heiman Matter Smoke Detector S1-TM	Heiman Smart CO Alarm
Alerts
Air Quality Alerts	No	No
Co Alerts	No	Yes Catalog note Real-time CO alerts on smartphone via Matter hub
Fire Alerts	Yes Catalog note Local 85 dB alarm plus notifications through the Matter controller app	No
Low Battery Alerts	Yes	Yes
Temperature Alerts	No	No
Connectivity
2.4 GHz Wi-Fi	No	No
5 GHz Wi-Fi	No	No
Bluetooth	No	No
Other	No	No
Thread	Thread Border Router required	Thread Border Router required
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	Yes Catalog note Triggers smart home actions when CO is detected
Built In Light	No	Yes Catalog note Flash alarm
Built In Siren	Yes Catalog note 85 dB at 10 ft	Yes Catalog note Audio alarm at least 85dB
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	No
Integrations
Alexa	Yes Catalog note Via Matter	Yes Catalog note Via Matter over Thread
Apple Home	Yes Catalog note Via Matter	Yes Catalog note Via Matter over Thread
Google Home	Yes Catalog note Via Matter	Yes Catalog note Via Matter over Thread
Home Assistant	Yes Catalog note Via Matter	Yes Catalog note Via Matter over Thread
Matter	Yes Catalog note Matter 1.4 over Thread; Heiman holds CSA Matter certificates for its smoke sensors with temperature and humidity reporting	Yes Catalog note Matter over Thread (Thread Border Router required)
SmartThings	Yes Catalog note Via Matter	Yes Catalog note Via Matter over Thread
Power
Battery Life	3.5 years	10 years
Battery Type	CR123A	CR123A
Wired	No	No
Sensors
Air Quality	No	No
Ambient Light	No	No
Co	No	Yes Catalog note FIGARO TGS5141 electrochemical sensor, 0 to 600ppm
Humidity	Yes Catalog note Built-in humidity sensor reported over Matter	No
Motion	No	No
Occupancy	No	No
Smoke	Yes Catalog note Dual-beam photoelectric sensor, UL 217 10th Edition certified	No
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