Price unavailable right now
Updated October 2026
Data from Amazon and official Heiman and Shelly sites.
2026 verdict
In this 2026 Shelly GAS (CNG) vs Heiman HS1CG Series Combustible Gas Sensor comparison, Shelly GAS (CNG) comes out ahead thanks to integrations.
Its biggest wins come from integrations, and its broader overall balance adds more confidence to the verdict. You should still consider Heiman HS1CG Series Combustible Gas Sensor if its specific feature mix matters more than raw overall balance. That is enough to make Shelly GAS (CNG) the better pick for most buyers.
News by email
Still comparing? Get what's new by email
New releases and the smart home news worth knowing, in your inbox.
No spam. Unsubscribe in one click.
| Feature | Heiman HS1CG Series Combustible Gas Sensor | Shelly GAS (CNG) | Winner |
|---|---|---|---|
| Integrations | Samsung SmartThings, Home Assistant | Google Home, Alexa, Samsung SmartThings, Home Assistant | Shelly GAS (CNG) |
| Connectivity | Zigbee | 2.4 GHz WiFi | Tie |
| Detection | Natural Gas, LPG & Propane | Natural Gas, Concentration Reading | Tie |
| Alerts | App Notifications, Fault Alerts | App Notifications, Fault Alerts | Tie |
| Digital Display | NO | NO | Tie |
| Interconnect | NO | NO | Tie |
Price unavailable right now
- - Integrations: Samsung SmartThings, Home Assistant vs Google Home, Alexa, Samsung SmartThings, Home Assistant
Winner
€64.21
- + Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant
Frequently Asked Questions
Which is better overall: Heiman HS1CG Series Combustible Gas Sensor or Shelly GAS (CNG)?
Shelly GAS (CNG) has the stronger overall profile in this comparison, especially for integrations.
What is the biggest difference between Heiman HS1CG Series Combustible Gas Sensor and Shelly GAS (CNG)?
Integrations is one of the clearest differences: Heiman HS1CG Series Combustible Gas Sensor lists Samsung SmartThings, Home Assistant, while Shelly GAS (CNG) lists Google Home, Alexa, Samsung SmartThings, Home Assistant.
Who should buy Heiman HS1CG Series Combustible Gas Sensor?
Choose Heiman HS1CG Series Combustible Gas Sensor if your priority is its specific strengths and that matters more than integrations.
Who should buy Shelly GAS (CNG)?
Choose Shelly GAS (CNG) if your priority is integrations and that matters more than the competing advantages.
Full comparison table
Compare all 7 Gas Detectors side by side
You are looking at two of them. The full table lines up all Gas Detectors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 7 Gas Detectors
- 44 specs compared
- 41 filters
Door & Window SensorsHeimanWindow Door Alarm
- Gas DetectorsHeiman
HS1CG Series Combustible Gas Sensor
Gas DetectorsHeimanWS2CG Series Combustible Gas Detector
Motion SensorsHeimanSmart Motion Sensor
Motion SensorsHeimanWiFi Smart Motion Sensor
SirensHeimanSmart Siren HS2WD series
Smoke & CO DetectorsHeimanHS1SA-E Zigbee Smoke Alarm
Smoke & CO DetectorsHeimanInterconnected CO Alarm C1-R
Smoke & CO DetectorsHeimanInterconnected Smoke Alarm S1-R
Smoke & CO DetectorsHeimanMatter Smoke Detector S1-M
Smoke & CO DetectorsHeimanMatter Smoke Detector S1-TM
Smoke & CO DetectorsHeimanSmart CO Alarm
Vibration SensorsHeimanSmart Vibration Sensor HS1VS series
Water Leak SensorsHeimanSmart Water Leakage Sensor
ButtonsShellyBLU Button Tough 1 ZB
ButtonsShellyBLU RC Button 4 ZB
CamerasShellyCamera
DisplaysShellyWall Display X1i
DisplaysShellyWall Display XL
DisplaysShellyWall Display
Door & Window SensorsShellyBLU Door/Window Outdoor ZB
Door & Window SensorsShellyBLU Door/Window ZB
Energy MonitorsShelly3EM-63W Gen3
Energy MonitorsShellyEM Gen3
Energy MonitorsShellyEM Gen4
Energy MonitorsShellyEM Mini Gen4
Energy MonitorsShellyPro 3EM 3CT63
Energy MonitorsShellyPro 3EM-400
Energy MonitorsShellyPro 3EM v2
Energy MonitorsShellyPro EM-50
Gas DetectorsShellyGAS (CNG)
Gas DetectorsShellyGAS (LPG)
LED BulbsShellyMulticolor Bulb E27 Gen3
Motion SensorsShellyBLU Motion ZB