GfG Combustible Sensor Transmitter

Ensure safe, compliant operation of HVAC systems and plant rooms with reliable combustible gas detection designed for real-world building environments. The CC22D fixed gas transmitter delivers continuous monitoring of flammable gases commonly found in mechanical plant spaces—helping protect people, assets, and critical infrastructure.

Ideal for commercial buildings, hospitals, data centres, and industrial facilities, the CC22D provides a cost-effective, easy-to-integrate solution for modern building services where early gas detection and system integration are essential.

Product Description
The GfG CC22D combustible gas transmitter is a robust, fixed gas detection solution engineered for continuous monitoring of flammable gases such as methane, propane, hydrogen, ethanol and other solvent vapours—commonly present in HVAC plant rooms, boiler rooms, and mechanical service areas.

Using proven catalytic combustion sensing technology, the CC22D delivers accurate and stable measurements across a wide detection range (0–100% LEL), ensuring early identification of gas leaks before they become hazardous.

Built for HVAC & Plant Room Integration
Designed with building services in mind, the CC22D integrates seamlessly into BMS/PLC systems via industry-standard outputs including 4–20 mA and RS-485 (Modbus), making it ideal for both new installations and retrofits.

Its compact, IP54-rated enclosure allows installation within plant rooms and service areas, with optional weather protection available for harsher environments.

Clear Local Indication & Safety Response
A built-in 2.2” colour display provides real-time gas readings and system status at the point of detection, while integrated visual (red backlight) and audible alarms ensure immediate local warning in the event of a leak.

Reliable, Low-Maintenance Performance
The CC22D is engineered for long-term operation with long-life sensors (up to ~5 years), automatic temperature compensation, and signal linearisation for consistent accuracy—even in fluctuating plant room conditions.

Key Features

Typical Applications