GD2G Ex-proof Catalytic Gas Detectors
Flammable Gas Detecting Solutions
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GD2G Series
Exproof Catalytic (Pellistor) Gas Detectors
It is used to detect flammable explosive gases quickly. ATEX and IECEx certified, it is a cost-effective gas detection solution for use in potentially explosive environments. Easily integrated into your security system with relay outputs and 4-20mA analog output.
Quick Specs
- Power: 16V ~ 32V DC (24V DC nominal)
- Communication: Standard Relay and Analog Outputs
- Conformity: ATEX, IECEx Certified (Zone 1, Zone2)
- IP65 Water and Dust Resistant
- Durable Aluminum Body
- Detects: Hydrocarbon Group Gases
GD2G Catalytic Fixed Gas Detectors
The GD2G Catalytic Gas Detector was developed to quickly and reliably detect flammable and explosive gases in the environment. With its economical price, the GD2G offers a budget-friendly solution that provides long-lasting and accurate measurements with regular calibration maintenance. Compliant with international standards and certified according to ATEX and IECEx regulations, the GD2G is the ideal choice for ensuring maximum safety in your industrial facilities.
Its advanced microcontroller-based smart circuit board, powered by embedded software algorithms, guarantees high-performance detection under all environmental conditions. Additionally, software optimizations tailored to your facility’s specific needs are possible.
Thanks to its digital relay outputs (NOC), the GD2G Catalytic Fixed Gas Detector can be used as a standalone unit and can be easily integrated into existing control and automation systems with its industry-standard 4-20 mA analog outputs. The detector instantly detects the presence of the target gas and responds quickly when the lower and upper alarm limits are reached. This helps to prevent potential hazards from escalating, which in turn maximizes personnel and facility safety.
Key Features:
- Fast detection of flammable and explosive gases
- Affordable cost and low maintenance expenses
- ATEX and IECEx international certifications
- Advanced microcontroller-based smart system
- Custom software optimizations for facility needs
- Digital relay outputs (NOC)
- Easy integration with standard 4-20mA analog outputs
- Maximum safety with a fast and reliable alarm system
Communication Options: Flexibility Tailored to Your Process
4-20 mA Analog Output (GD420)
- This model does not have a relay. It connects directly to process control loops. This requires minimal field wiring and maintenance.
Optional Modbus RS-485 (GD485)
- It enables you to digitally transfer measurement data to your central SCADA, DCS, or PLC systems and facilitates multi-device monitoring and diagnostics.
These two options allow you to seamlessly integrate your GD2G detector into your existing automation architecture, ensuring the reliable and continuous transfer of critical gas data to management.

Power | 24 VDC ± 25% |
Detection Range | 0 - 100% LEL |
Resolution | 1% LEL |
Response Time | < 10s |
Sensor Type | Catalytic (Pellistor) |
Analog Output | 4~20 mA |
Digital Output | 3 Relays (NO or NC) |
Environmental Conditions | Temperature: -20/+60°C Pressure: 86-106 kPa Humidity: 95% RH |
Weight | 1kg |
Material | Aluminum |
Sensor Capsule | Stainless Steel |
ATEX Marking | II 2G Ex d IIC Gb T6 |
IECEX Marking | Ex db IIC T6 Gb |
IP Protection Level | IP65 |
Warranty | 2 Years |
Order Code | Gas Name | Gas Formula |
---|---|---|
GD2GC01L0100 | Methane | CH4 |
GD2GC02L0100 | Propane | C3H8 |
GD2GC17L0100 | n-Butane | C4H10 |
GD2GC16L0100 | n-Pentane | C5H12 |
GD2GC18L0100 | n-Hexane | C6H12 |
GD2GC19L0100 | n-Heptane | C7H16 |
GD2GC20L0100 | n-Octane | C8H18 |
GD2GC36L0100 | Methanol | CH3OH |
GD2GC33L0100 | Ethanol | C2H5OH |
GD2GC26L0100 | Iso-propanol | C3H8O |
GD2GC30L0100 | Acetone | C3H6O |
GD2GC43L0100 | Methyl-ethyl-ketone | C4H8O |
GD2GC04L0100 | Toluene | C7H8 |
GD2GC34L0100 | Ethyl Acetate | C4H8O2 |
GD2GC03L0100 | Hydrogen | H2 |
GD2GC06L0100 | Unleaded Petrol | N/A |
GD2GC27L0100 | Ethylene | C2H4 |
GD2GC28L0100 | Acetylene | C2H2 |
GD2GC29L0100 | Acetic Acid | C2H4O2 |
GD2GC31L0100 | Cyclohexane | C6H12 |
GD2GC32L0100 | Cyclopentane | C5H10 |
GD2GC22L0100 | Iso-butane | C4H10 |
GD2GC24L0100 | Iso-octane | C8H18 |
GD2GC21L0100 | n-Propanol | C3H8O |
GD2GC37L0100 | Styrene | C8H8 |
GD2GC38L0100 | Propylene | C3H6 |
GD2GC07L0100 | Xylene | C8H10 |
GD2G Catalytic Detectors Brochure [PDF]
207KB / English / 11 April 2022
GD2G Technical Manual [PDF]
1.7MB / Turkish / English / 26 October 2023
GD2G ATEX Certificate [PDF]
264KB / English / 15 September 2022
GD2G IECEx Certificate [PDF]
151KB / English / 15 September 2022
GD2G Catalytic Detector Image [WEBP]
56KB / 1200x1200px
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