FLIR G-Series

Optical Gas Imaging (OGI) Cameras for Hydrocarbons

The FLIR Gx320, G620, and Gx620 are innovative Optical Gas Imaging (OGI) cameras designed to detect hydrocarbons, methane (CH₄), and other Volatile Organic Compound (VOC) emissions from multiple stages of the oil and gas supply chain, as well as other industrial markets. With up to 640 × 480 (307,200 pixels) thermal resolution, FLIR G-Series cameras have innovative gas quantification analytics that measure leak type and severity inside the camera, eliminating the need for a secondary device. While all models are OOOOa certified, the FLIR Gx320 and Gx620 are ATEX compliant, making these camera models ideal for detecting gas emissions in complex systems including refineries, petrochemical facilities, natural gas well pads, compression stations, and power generation plants.
Superior gas visualization and quantification

Revolutionary gas leak-detection features including quantification analytics inside the camera which measures the type and size of leaks, eliminating the need for a secondary device

Built-in Wi-Fi and Bluetooth® allow you to connect to smartphones or tablets and effortlessly edit and store images in the cloud, or wirelessly transfer files using the included FLIR Ignite™ cloud service

Comfortably operate and interact with your G-Series camera thanks to its rotating 10.16 cm (4 in) LCD touchscreen, which allows you view targets from any direction

FLIR Gas Detection Camera Comparison

G620 vs Gx620 vs Gx320

Imaging & Optical Specifications
Specification FLIR G620 FLIR Gx620 FLIR Gx320
Detector Resolution 640 × 480 640 × 480 320 × 240
Detector Type Cooled MWIR Cooled MWIR Cooled MWIR
Spectral Range 3.2 – 3.4 µm 3.2 – 3.4 µm 3.2 – 3.4 µm
NETD <20 mK <20 mK <20 mK
Gas Detection & Performance
Specification FLIR G620 FLIR Gx620 FLIR Gx320
Gas Visualization Methane, hydrocarbons Methane & VOCs Methane & VOCs
Optical Gas Imaging (OGI) Yes Yes Yes
High Sensitivity Mode (HSM) Yes Yes Yes
Leak Quantification (QOGI) Optional Optional Optional
Applications & Use Case
Category FLIR G620 FLIR Gx620 FLIR Gx320
Main Industry Oil & Gas LDAR Oil, Gas & Chemical Industrial LDAR
ATEX / IECEx Yes Yes Yes
Best For High-end compliance inspections Advanced LDAR programs Cost-effective LDAR surveys

Specifications are subject to change without notice. FLIR, G620, Gx620, and Gx320 are trademarks of Teledyne FLIR LLC.