Shelly Gas CNG — WiFi Natural Gas Detector

Shelly Gas CNG — Smart WiFi Natural Gas (CNG) Detector

The Shelly Gas CNG is a natural gas (CNG - Compressed Natural Gas) detector with WiFi connectivity. It detects methane leaks with high sensitivity and instantly activates an audible alarm (>70 dB) and visual alarm. It sends notifications to your mobile phone and can control an automatic shut-off valve. No proprietary hub or subscriptions required.

Technical Specifications — Shelly Gas CNG

• Gas type: Natural Gas (CNG / Methane)
• Connectivity: WiFi 802.11 b/g/n (2.4 GHz)
• Power supply: 110–230 V ±10%, 50/60 Hz
• Consumption: <3 W
• Alarm: Audible >70 dB + visual
• Detection threshold: 6% LEL
• Operating temperature: −10 °C to +50 °C
• Dimensions: 89.5 × 89.5 × 38 mm
• Weight: 183 g
• Material: Fire-resistant casing
• Certifications: CE, RoHS

Main features

• Natural gas leak detection at 6% LEL — before dangerous levels
• Simultaneous audible (>70 dB) and visual alarm upon gas detection
• Instant push notifications to mobile via the Shelly app
• Output for automatic shut-off valve control
• No hub: direct connection to home WiFi
• Fire-resistant casing for added safety
• Compatible with Home Assistant, Alexa, and Google Home

Compatible with

• Home Assistant (MQTT, REST API)
• Amazon Alexa
• Google Home
• MQTT, HTTP REST API

Use cases

• Protection of kitchens with natural gas against leaks
• Safety in gas installations in residential communities
• Automation of gas shut-off upon leak detection
• Remote monitoring of gas installations from a mobile phone

Official Shelly distribution. Shipping from Spain. Official Shelly warranty.