
Option 1 · Heiman
Heiman Matter Smoke Detector S1-TM
Last updated October 2026
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A summary of selected recorded differences between these smoke & co detectors. Check the full specification table below for details and conditions.
These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.
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Option 1 · Heiman
Last updated October 2026
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Option 2 · X-Sense
Last updated October 2026
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These counts describe the available data, not a quality score. More features do not automatically make a better device.
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Showing 37 of 37 rows. “Not recorded” does not mean “No”.
Push notifications for alarms, danger cleared, low battery, device malfunction and end of life, plus a CO alarm precaution warning before the full alarm threshold is reached
Local 85 dB alarm plus notifications through the Matter controller app
Connects to a 2.4 GHz Wi-Fi network only; a 5 GHz network is not supported
Backlit LCD that scrolls through the live CO reading, temperature and humidity, and shows the stored CO peak level
Local Matter automations, no cloud required
Status is shown by a red/yellow/green/blue LED indicator and the backlit LCD, not by a separate emergency light
85 dB at 10 ft
85 dB at 10 ft (3 m), with spoken voice alerts that name the alarm and its location
Dual-beam sensing tells smoke apart from steam and cooking fumes to cut false alarms
Push to test button, and the test can be triggered remotely from Home Assistant
Via Matter
Via Matter
Via Matter
Via Matter
Matter 1.4 over Thread; Heiman holds CSA Matter certificates for its smoke sensors with temperature and humidity reporting
Via Matter
Electrochemical sensor; alarms at 70 ppm within 60-240 minutes, at 150 ppm within 10-50 minutes and at 400 ppm within 4-15 minutes
Built-in humidity sensor reported over Matter
Humidity monitoring is included.
X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts manufacturer product page →The ten-year figure in the source describes service life, not battery life. The alarm is a carbon monoxide model.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Reads relative humidity to within 5% and graphs its history in the app
Dual-beam photoelectric sensor, UL 217 10th Edition certified
Built-in temperature sensor reported over Matter
Temperature monitoring is included.
X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts manufacturer product page →The ten-year figure in the source describes service life, not battery life. The alarm is a carbon monoxide model.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Reads ambient temperature to within 0.9 F (0.5 C) and graphs its history in the app
| Specification | Heiman Matter Smoke Detector S1-TM | X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts |
|---|---|---|
| Alerts | ||
| No | No | |
| No | YesCatalog notePush notifications for alarms, danger cleared, low battery, device malfunction and end of life, plus a CO alarm precaution warning before the full alarm threshold is reached | |
YesCatalog noteLocal 85 dB alarm plus notifications through the Matter controller app | No | |
| Yes | Yes | |
| No | No | |
| Connectivity | ||
| No | YesCatalog noteConnects to a 2.4 GHz Wi-Fi network only; a 5 GHz network is not supported | |
| No | No | |
| No | No | |
| No | No | |
| Thread Border Router required | No | |
| No | No | |
| No | No | |
| Display | ||
| No | YesCatalog noteBacklit LCD that scrolls through the live CO reading, temperature and humidity, and shows the stored CO peak level | |
| Not applicable / unspecified | LCD | |
| Features | ||
YesCatalog noteLocal Matter automations, no cloud required | No | |
| No | NoCatalog noteStatus is shown by a red/yellow/green/blue LED indicator and the backlit LCD, not by a separate emergency light | |
YesCatalog note85 dB at 10 ft | YesCatalog note85 dB at 10 ft (3 m), with spoken voice alerts that name the alarm and its location | |
| No | No | |
YesCatalog noteDual-beam sensing tells smoke apart from steam and cooking fumes to cut false alarms | No | |
YesCatalog notePush to test button, and the test can be triggered remotely from Home Assistant | No | |
| Integrations | ||
YesCatalog noteVia Matter | No | |
YesCatalog noteVia Matter | No | |
YesCatalog noteVia Matter | No | |
YesCatalog noteVia Matter | Not recorded | |
YesCatalog noteMatter 1.4 over Thread; Heiman holds CSA Matter certificates for its smoke sensors with temperature and humidity reporting | No | |
YesCatalog noteVia Matter | No | |
| Power | ||
| 3.5 years | 1 year | |
| CR123A | CR123A | |
| No | No | |
| Sensors | ||
| No | No | |
| No | No | |
| No | YesCatalog noteElectrochemical sensor; alarms at 70 ppm within 60-240 minutes, at 150 ppm within 10-50 minutes and at 400 ppm within 4-15 minutes | |
YesCatalog noteBuilt-in humidity sensor reported over Matter | YesManufacturer sourceHumidity monitoring is included. X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts manufacturer product page →
The ten-year figure in the source describes service life, not battery life. The alarm is a carbon monoxide model. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog noteReads relative humidity to within 5% and graphs its history in the app | |
| No | No | |
| No | No | |
YesCatalog noteDual-beam photoelectric sensor, UL 217 10th Edition certified | No | |
YesCatalog noteBuilt-in temperature sensor reported over Matter | YesManufacturer sourceTemperature monitoring is included. X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts manufacturer product page →
The ten-year figure in the source describes service life, not battery life. The alarm is a carbon monoxide model. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog noteReads ambient temperature to within 0.9 F (0.5 C) and graphs its history in the app | |
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