Winner
Price unavailable right now
Data from the official Heiman and Zemismart sites.
2026 verdict
Between Heiman HS1CG Series Combustible Gas Sensor and Zemismart ZM-GA100 Zigbee Gas Detector, Heiman HS1CG Series Combustible Gas Sensor is the better overall pick in 2026, leading on integrations.
Its clearest strengths are integrations, and it still looks stronger on its broader overall balance. Zemismart ZM-GA100 Zigbee Gas Detector is the better fit only for buyers who prioritize alerts above everything else here. That is enough to make Heiman HS1CG Series Combustible Gas Sensor the better pick for most buyers.
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| Feature | Heiman HS1CG Series Combustible Gas Sensor | Zemismart ZM-GA100 Zigbee Gas Detector | Winner |
|---|---|---|---|
| Integrations | Samsung SmartThings, Home Assistant | Home Assistant | Heiman HS1CG Series Combustible Gas Sensor |
| Alerts | App Notifications, Fault Alerts | App Notifications, Voice Alerts, Low Battery Alerts | Zemismart ZM-GA100 Zigbee Gas Detector |
| Connectivity | Zigbee | Zigbee | Tie |
| Detection | Natural Gas, LPG & Propane | Natural Gas, Concentration Reading | Tie |
| Digital Display | NO | NO | Tie |
| Interconnect | NO | NO | Tie |
| Local Control | YES | YES | Tie |
Winner
Price unavailable right now
- + Integrations: Samsung SmartThings, Home Assistant
- - Alerts: App Notifications, Fault Alerts vs App Notifications, Voice Alerts, Low Battery Alerts
30% OFF
$26.00
$37.14
- + Alerts: App Notifications, Voice Alerts, Low Battery Alerts
- - Integrations: Home Assistant vs Samsung SmartThings, Home Assistant
Frequently Asked Questions
Which is better overall: Heiman HS1CG Series Combustible Gas Sensor or Zemismart ZM-GA100 Zigbee Gas Detector?
Heiman HS1CG Series Combustible Gas Sensor has the stronger overall profile in this comparison, especially for integrations.
What is the biggest difference between Heiman HS1CG Series Combustible Gas Sensor and Zemismart ZM-GA100 Zigbee Gas Detector?
Integrations is one of the clearest differences: Heiman HS1CG Series Combustible Gas Sensor lists Samsung SmartThings, Home Assistant, while Zemismart ZM-GA100 Zigbee Gas Detector lists Home Assistant.
Who should buy Heiman HS1CG Series Combustible Gas Sensor?
Choose Heiman HS1CG Series Combustible Gas Sensor if your priority is integrations and that matters more than alerts.
Who should buy Zemismart ZM-GA100 Zigbee Gas Detector?
Choose Zemismart ZM-GA100 Zigbee Gas Detector if your priority is alerts and that matters more than integrations.
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Compare all 7 Gas Detectors side by side
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- 7 Gas Detectors
- 45 specs compared
- 42 filters
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Smart CO Alarm
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Smoke and CO Alarm HM-636THS
- Vibration Sensors
Smart Vibration Sensor HS1VS series
- Water Leak Sensors
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