Shelly Gas CNG: Wi-Fi Sensor for Natural Gas

An invisible danger, a smart guardian: the Shelly Gas CNG

A gas leak is one of the biggest household hazards. It's invisible and often odorless at first. The Shelly Gas CNG is a smart, Wi-Fi-connected sensor that keeps you and your family safe. Specifically designed to detect compressed natural gas (CNG), also known as methane, it immediately sounds an alarm at even the smallest concentration. This way, you're always warned in time, wherever you are.

Do you need a CNG or LPG gas detector?

Choosing the right sensor for the right gas type is essential. Here's a simple guide:

• CNG (Compressed Natural Gas): This is the gas that enters your home through pipes to power your boiler, stove, or water heater. Natural gas (methane) is lighter than air and rises . Therefore, a CNG sensor should be placed high on the wall , relatively close to the ceiling.
• LPG (Liquefied Petroleum Gas): This is a bottled gas, such as propane or butane. You use it for BBQs, camping stoves, or in campers. LPG is heavier than air and sinks to the floor . Therefore, you should place an LPG sensor low to the ground .

In short: Do you use a fixed gas connection at home? Then this Shelly Gas CNG is the right choice for you.

The power of the Shelly Gas Sensor

• Specific for Natural Gas (CNG) : This sensor is optimized for detecting methane (CH4), the main component of the natural gas used in most Dutch households.
• Double Alarm : When gas is detected, the sensor immediately activates a loud audible alarm (>70dB) and a clearly visible red light alarm.
• Direct Notifications on your Phone : Thanks to the Wi-Fi connection and the Shelly Cloud app, you will receive a push message directly on your smartphone.
• Safe Housing : The sensor housing is made of flame retardant material for added safety.
• Smart Home Automation : Connect the Shelly Gas to other Shelly devices for a complete safety routine.
• Simple Plug-and-Play Installation : Plug the sensor into a wall socket, connect it to your Wi-Fi network, and you're done.

Practical application: the automated emergency procedure

Plug the Shelly Gas CNG into a high-level outlet in the kitchen or utility room. Combine it with the separately available Shelly Gas Add-on (a motorized valve). Create the ultimate emergency scenario in the Shelly app or Home Assistant:

If the Shelly Gas detects a gas leak, it not only activates the built-in alarm but also sends a signal directly to the Shelly Gas Add-on, which automatically turns off the main gas valve . Simultaneously, you'll receive a critical alert on your phone and can even flash all the lights in your house. This is the most effective way to ensure immediate safety.

Technical specifications

• Product : Shelly Gas (CNG version)
• EAN : 3809511202463
• Detected gas : CNG (Compressed Natural Gas / Natural Gas / Methane)
• Power supply : 110-230V AC, directly into the wall socket
• Alarm : Acoustic (>70dB) and visual (LED)
• Connectivity : Wi-Fi 802.11 b/g/n (2.4 GHz)
• Platform Support : Fully compatible with Home Assistant, Homey, Google Home, Amazon Alexa and controllable via MQTT, REST API.

✅ slimhuisje.nl – your technology partner for a safer and smarter home.