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Gas Detectors · Head to head

Heiman WS2CG Series Combustible Gas Detector vs Shelly GAS (LPG)

Full Smart Gas Detectors comparison in 2026

Data from Amazon and official Heiman and Shelly sites.
2026 verdict
Across the 2026 comparison, Heiman WS2CG Series Combustible Gas Detector earns the nod over Shelly GAS (LPG) on the strength of detection and alerts.
Heiman WS2CG Series Combustible Gas Detector
Winner
Heiman WS2CG Series Combustible Gas Detector

Last recorded price

Buy on Official Store
It separates itself most clearly on detection and alerts, while still looking better on its broader overall balance. There is still a case for Shelly GAS (LPG), but mainly if integrations are what you value most. That is why the final call still favors Heiman WS2CG Series Combustible Gas Detector.
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FeatureHeiman WS2CG Series Combustible Gas DetectorShelly GAS (LPG)Winner
IntegrationsHome AssistantGoogle Home, Alexa, Samsung SmartThings, Home AssistantShelly GAS (LPG)
DetectionNatural Gas, LPG & PropaneLPG & Propane, Concentration ReadingHeiman WS2CG Series Combustible Gas Detector
AlertsApp Notifications, Voice Alerts, Fault AlertsApp Notifications, Fault AlertsHeiman WS2CG Series Combustible Gas Detector
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
Valve Shut-offYESYESTie
Digital DisplayNONOTie
InterconnectNONOTie
Shelly

Shelly GAS (LPG)

Prime exclusive deal

Last recorded price

Buy on Amazon Netherlands
  • + Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant
  • - Detection: LPG & Propane, Concentration Reading vs Natural Gas, LPG & Propane
  • - Alerts: App Notifications, Fault Alerts vs App Notifications, Voice Alerts, Fault Alerts

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Heiman WS2CG Series Combustible Gas Detector
  • Shelly GAS (LPG)

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Frequently Asked Questions

Which is better overall: Heiman WS2CG Series Combustible Gas Detector or Shelly GAS (LPG)?

Heiman WS2CG Series Combustible Gas Detector has the stronger overall profile in this comparison, especially for detection and alerts.

What is the biggest difference between Heiman WS2CG Series Combustible Gas Detector and Shelly GAS (LPG)?

Integrations is one of the clearest differences: Heiman WS2CG Series Combustible Gas Detector lists Home Assistant, while Shelly GAS (LPG) lists Google Home, Alexa, Samsung SmartThings, Home Assistant.

Who should buy Heiman WS2CG Series Combustible Gas Detector?

Choose Heiman WS2CG Series Combustible Gas Detector if your priority is detection and alerts and that matters more than integrations.

Who should buy Shelly GAS (LPG)?

Choose Shelly GAS (LPG) if your priority is integrations and that matters more than detection.

Full comparison table

Compare all 7 Gas Detectors side by side

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  • 7 Gas Detectors
  • 44 specs compared
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