Gas Find IR


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FLIR GF77 is the first uncooled infrared camera from FLIR to visualize methane emissions in realtime for faster, more efficient gas leak surveys. This nimble, affordable alternative to FLIR’s industry-leading cooled optical gas imagers was designed for use by renewable energy producers, at natural gas power plants, and at locations along the natural gas supply chain.

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The Groundbreaking, Affordable OGI Camera

  • Spectral Filtering for Methane

    By filtering for methane and similar gases, the GF77 improves detection while also reducing false negatives from gases that absorb in other wavelengths.

  • Robust Camera Features

    From laser-assisted autofocus to 1-Touch Level/Span contrast enhancement, the GF77 offers the latest high-tech features you’d expect from FLIR.

  • Designed for Your Workday

    Designed with a 180° rotating optical block and an eyepiece viewfinder for all-day use, and packed with reporting features that help you organize your findings in the field.

Improve Gas Detection

Improve Gas Detection

Improve image clarity and gas detection with advanced features from FLIR. The GF77 is calibrated for temperature, so you can manually adjust contrast between the gas cloud and the background. Or, increase contrast instantly with the 1-Touch Level/Span auto-adjustment feature. Finally, accentuate plume movement with FLIR High Sensitivity Mode (HSM).

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Detector Type
Uncooled microbolometer
Dynamic Range
Focal Length
18 mm (0.71 in.)
IR Resolution
320 × 240 pixels
Standard, 1/4"-20
Spectral Range
7.0 – 8.5 µm
1-6x continuous digital zoom
Hazardous Location Compliance
Ambient temperature range
–15°C to 50°C (5°F to 122°F)
IP 54 (IEC 60529)
Operating Temperature Range
–20°C to 50°C (–4°F to 122°F)
Shock & Vibration
25 g (IEC 60068-2-27) / 2 g (IEC 60068-2-6)
Standard Temperature Range
–20°C to 70°C (–4°F to 158°F)
Storage Temperature Range
–40°C to 70°C (–40°F to 158°F)
Imaging & Optical
Automatic Image Adjustment
Camera f-number
Color palettes
Iron, Gray, Rainbow, Arctic, Lava, Rainbow HC
Detector Pitch
25 µm
Field of view (FOV)
25° × 19°
Continuous LDM, One-shot LDM, One-shot contrast, Manual
Frame Rate [Full Window]
30 Hz
Global Positioning System [GPS]
Location data stored with every image
Image Modes
Automatic, automatic maximum, automatic minimum, HSM, manual
Minimum Focus Distance
0.3 m (0.98 ft.)
Sensor Cooling
Streaming Video
Radiometric IR streaming over UVC. Non-radiometric IR video streaming: H.264 (AVC) over Wi-Fi, MPEG4 over Wi-Fi, MJPEG over UVC and Wi-Fi
Total Pixels
Image Analysis
3 spotmeters in live mode, 3 area boxes in live mode, automatic hot/cold detection (maximum/minimum markers within area), delta temperature, emissivity & measurement correction
Non-Radiometric IR Video
H.264 to memory card
On Camera Display
640 × 480 pixel (QVGA) 4" LCD
Radiometric IR Video
RTRR (.csq)
Visual Image
5 MP visible camera with LED light
Visual Video
H.264 to memory card
Measurement & Analysis
±5°C (±9°F) for ambient temperature range -15°C to 35°C (59°F to 95°F)
<25 mK @ 30°C (86°F)
Battery Type
Rechargeable Li-ion battery
External Power Operation
AC adapter 90-260 VAC, 50/60 Hz or 12 VDC from a vehicle
Related Content
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Export Restrictions

Export Restrictions

The information contained in this page pertains to a dual use product controlled for export by the Export Administration Regulations (EAR). Diversion contrary to US law is prohibited. US Department of Commerce authorization is not required prior to export or transfer to foreign persons or parties unless otherwise prohibited.