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Optical Gas Imaging (OGI) Cameras for Hydrocarbons

FLIR G-Series

Model: G620 14.5° Go to Product Support
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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

  • Record and report findings efficiently

    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

  • Ergonomic for comfortable operation

    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

What Types of Gases Can You See With an OGI Camera?

oil gas matrix.JPG

What Gases Can I See?
Download the entire list of gases and the GF models that can detect them.

Find out how

thermal-studio-pro-Exseries.pngProfessional Reports that Help Your Customer and Your Business

The right image analysis and reporting software can greatly improve your business by making it easier for you and your customers to understand the problem and feel confident that you fixed it.

The advanced analysis and decision-making support offered in FLIR Thermal Studio Pro includes a rich set of measurement tools, batch processing, the ability to pre-plan inspection routes, and customized report templates.



Become a Thermal Studio Expert

Learn to edit images, analyze them, and produce custom reports using FLIR Thermal Studio Suite software with online training from the Infrared Training Center. This virtual class covers everything you need to know, including: 

  • How to adjust image parameters and optimize thermal contrast
  • How to create batch functions for image processing
  • How to design a new report template

Thermal Studio Training

IR Resolution
640 × 480 pixels (307,200 pixels)
Detector Pitch
15 μm
±1°C (±1.8°F) for temperature range 0°C to 100°C (32°F to 212°F) or ±2% of reading for temperature range >100°C (>212°F)
Spectral Range
3.2 µm to 3.4 µm
Imaging & Optical
Adjustable Viewfinder
Built-in, tiltable OLED, 800 × 480 pixels
Camera f-number
Color LCD
4", 640 × 480 pixel rotatable, touchscreen LCD
Color Palettes
Arctic, White hot, Black hot, Iron, Lava, Rainbow, Rainbow HC
Detector Pitch
15 μm
Detector Type
Focal plane array (FPA), cooled InSb
Display Frame Rate
60 Hz
Field of View
14.5° × 10.8°
Auto & Manual
Image Analysis
10 spots, 5 boxes with max/min/average, 1 line (horizontal or vertical), measurement corrections
Image Modes
IR image, visual image, high sensitivity mode (HSM), noise reduction filter
IR Resolution
640 × 480 pixels (307,200 pixels)
Laser Spot
MPEG Video Recording
On Camera Display
Widescreen 800 × 480 pixel LCD, Tiltable 800 × 480 pixel OLED viewfinder
Radiometric IR Video
RTRR (.csq), Over UVC
Radiometric JPG
Sensor Cooling
Stirling Microcooler (FLIR MC-3)
Spectral Range
3.2 µm to 3.4 µm
Video Recording & Streaming
H.264 to memory card
1 – 8× continuous, digital zoom
Measurement & Analysis
±1°C (±1.8°F) for temperature range 0°C to 100°C (32°F to 212°F) or ±2% of reading for temperature range >100°C (>212°F)
Area Box
5 (min./max./avg.)
Delta T
Gas Quantification
Quantification onboard camera
Gas Sensitivity
CH₄: <29 ppm x m
Hydrocarbons (multiple): <4 ppm x m
(ΔT = 10°C, Distance = 1 m)
Measurement Corrections
Reflected temperature, distance, atmospheric transmission, humidity, external optics
1 live line (horiz. or vert.)
MultiREC Recording; Record multiple files automatically in customizable order
Spot Meter
Temperature Range
-20°C to 350°C (-4°F to 662°F)
Thermal Sensitivity
<20 mK at 30°C (86°F)
Communication & Data Storage
Communication Interfaces
USB 2.0, Bluetooth via headset, Wi-Fi, HDMI
Image File Format
Standard JPEG, measurement data included. Infrared-only mode
Operating frequency:
•Bluetooth + EDR: 2402–2480 MHz
•WLAN 2.4 GHz: 2412–2462 MHz
•WLAN 5 GHz: 5150-5250 MHz Note that frequency band 5150-5250 MHz is for indoor use only, see national regulations.

RF output (EIRP)
• Bluetooth + EDR: <10 dBm
•WLAN: <17 dBm

•Integrated PIFA antenna (gain: maximum 2.6 dBi)
Storage Media
Removable SD card
Video Out
Voice: 60 seconds with Bluetooth on still images and video
Text: Text from predefined list or soft keyboard on touchscreen
Image Sketch: Yes, on infrared only
Cloud Services
Via Wi-Fi; FLIR Ignite for direct, secure image uploading, organizing, storage, and sharing (required firmware available)
FLIR Inspection Route
Enabled in the camera
GPS [removable]
Location data automatically added to every still image and first frame in video from built-in GPS
Laser Pointer
Class 2
Package Includes
Infrared camera with lens, battery (2 pcs), battery charger, power supply including multi-plugs, hand strap, neck strap, lens cap, lens cap strap, memory card, HDMI-HDMI cable, USB cable, screwdriver TX20, knob screw (optional screw for the rear cover), printed documentation, hard transport case
Packaging Size
400 × 190 × 510 mm (15.7 × 7.5 × 20.1 in.)
Size [L x W x H ] w Lens
251.6 mm × 164.5 mm × 170.9 mm (9.9 in × 6.48 in × 6.73 in)
Weight [incl lens & batteries]
3 kg (6.18 lb)
User Interface
Battery operating time
>2.5 hours at 25°C (68°F) and typical use
Battery Type
Rechargeable Li-ion battery; 7.4 V, charged in camera or separate 2-bay charger
Charging Time
2.5 hours to 95% capacity, charging status indicated by LEDs
Start Up Time
Typically 7 min. at 25°C (77°F)
Environmental & Certifications
RoHS: 2011/65/EU
WEEE: 2012/19/EU
RED: 2014/53/EU
EMC: ETSI EN 301 489-1 (radio), ETSI EN 301 489-17, EN 55032 (emission), EN 55035 (immunity), EN 61000-4-8 Level 5 (magnetic field), EN 61000-6-2, Immunity Industrial Environment, FCC 47 CFR part 15 B, class B (emission), ICES-003
IP54 (IEC 60529)
UNC ¼"-20
Operating Temperature Range
-20°C to 50°C (-4°F to 122°F)
Shock & Vibration
Shock: 25 g (IEC 60068-2-27); Vibration: 2 g (IEC 60068-2-6)
Storage Temperature Range
-30°C to 60°C (-22°F to 140°F)

Media gallery

FLIR G-Series | Optical Gas Imaging (OGI) Cameras for Ultimate Leak Detection
FLIR G-Series | Optical Gas Imaging (OGI) Cameras for Ultimate Leak Detection
Record leaks easier with FLIR G-Series OGI Cameras
Record leaks easier with FLIR G-Series OGI Cameras
Share photos and videos faster with FLIR G-Series OGI Cameras
Share photos and videos faster with FLIR G-Series OGI Cameras
Quantify Gas with the FLIR G-Series OGI Cameras
Quantify Gas with the FLIR G-Series OGI Cameras
Related Documents
Export Restrictions

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

FLIR G-Series - Model: G620 14.5°

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