Fixed Gas Find IR Camera


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The FLIR GF77a is the first uncooled autonomous leak detection camera from FLIR designed specifically to visualize methane gas. This affordable, fixed-camera solution provides upstream and midstream gas processors, producers, or operators the features they need to continuously monitor for potentially dangerous, invisible methane leaks. Small and lightweight, the FLIR GF77a is packed with FLIR-patented features, such as High Sensitivity Mode (HSM), for improved gas visualization. The GF77a can help oil and gas companies maintain valuable capital equipment, avoid product loss, meet emissions reduction metrics, and ensure safer work practices.

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    Offers industry-leading features for continuous monitoring applications including High Sensitivity Mode, remote motorized focus, and open architecture for third-party integration.


    Spectrally-filtered to detect methane gases, improving worker safety and leak location identification with fewer in-person inspections.


    RTSP and GigE compliant, the GF77a offers flexibility to meet many industrial communication needs and connects to a network for continuous leak detection.

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Detector Type
Uncooled microbolometer
Video streaming – RTSP Protocol: H.264 / MPEG4 / MJPEG; GVSP: Uncompressed Radiometric streaming – RTSP Protocol: Compressed JPEG-LS, FLIR radiometric; GVSP: Uncompressed, signal linear, temperature linear, FLIR radiometric
FLIR Screen-EST Mode
Size [L × W × H]
123 × 77 × 77 mm (4.84 × 3.03 × 3.03 in)
Web interface
0.82 kg (1.8 lbs)
Connections & Communications
Connection Type
Wi-Fi: Peer to peer (ad hoc) or infrastructure (network)
Pan and tilt control: M8 A-coded, male; Wi-Fi: Female RP-SMA (Pan/Tilt is an optional feature)
Digital I/O connector type
M12 Male 12-pin A-coded (shared with ext. power)
Digital Inputs
2x opto-isolated, Vin (low) = 0 - 1.5 V, Vin (high) = 3-25V
Digital Output Purpose
• Programmatically set • Fault (NC)
Digital Outputs
3x opto-isolated, 0–48 VDC, max. 350 mA (derated to 200 mA at 60. Solid-state opto relay, 1x dedicated as Fault output (NC)
Ethernet Communication
GigE Vision ver. 1.2, Client API GenICam compliant, TCP/IP socket-based FLIR proprietary
Ethernet Connector Type
M12 8-pin X-coded, Female
Ethernet Image Streaming
Ethernet Power
Power over Ethernet, PoE IEEE 802.3af class 3
Ethernet Protocols
IEEE 1588, SNMP, TCP, UDP, SNTP, RTSP, RTP, HTTP, ICMP, IGMP, sftp (server), FTP (client) SMTP, DHCP, MDNS (Bonjour), uPnP
RTSP Protocol, GVSP (GigE Vision) Protocol
Serial Communication
Pan and tilt control: RS232 and RS485 exclusively
RTSP Protocol, GVSP (GigE Vision) Protocol
Wi-Fi standard – IEEE802.11a/b/g/n
IP 54 (IEC 60529)‎ IP66 with accessory
Imaging & Optical
Contrast Enhancement
Histogram equalization (IR only) for RTSP and GVSP video streaming, Image Source 0
Detector Pitch
25 µm
Field of view (FOV)
25° lens: 25° × 19° 6° lens: 6.4° × 4.9°
Focal Length
25° lens: 18 mm 6° lens: 74 mm
Focal Plane Array (FPA) - Spectral range
Uncooled microbolometer/7 – 8.5 µm
One-shot contrast, motorized, manual
Gas Sensitivity [NECL]
CH4 (<100 ppm × m), N2O (<75 ppm × m), C3H8 (<400 ppm × m), SO2 (<30 ppm x m); ΔT = 10°C, distance = 1 m
Image Frequency
30 Hz
IR Resolution
320 × 240 (76,800) pixels
Minimum Focus Distance
0.3 m (0.98 ft) for 25° lens; 5 m (16.4 ft) for 6° lens
Image Source 0: RTSP Protocol: with, without; GVSP (GigE Vision) Protocol, with, without,
Spatial resolution (IFOV)
1.4 mrad/pixel
Spectral Range
7 – 8.5 µm
Thermal Resolution [NETD]
<25 mk at 30°C (86°F)
Video Lamp
Built-in LED light
Visual Resolution
1280 × 960 pixels
Measurement & Analysis
Range 1: -20° to 80°C (-4° to 176°F) ±3°C (±5°F), Range 2: 0° to 250°C (212° to 482°F): 0° to 100°C (32° to 212°F):±3°C, 100° to 250°C (212° to 482°F):±3%, Range 3: 100° to 500°C (212° to 932°F):±3%
Correction Options
Atmospheric, optics transmission, emissivity, reflected apparent temperature, external optics/window
Measurement Corrections
Global object parameters
Object Temperature Range
Range 1: -20° to 80°C (-4° to 176°F), Range 2: 0° to 250°C (212° to 482°F), Range 3: 100° to 500°C (212° to 932°F)
Optional feature; Control standard – Pelco D
External Voltage
Allowed range 18-56 VDC, 8 W max
PoE or external
Power Consumption
6.8 W at 24 V DC typical 7.0 W at 48 V DC typical 7.3 W at 48 V PoE typical
Thermal Camera
Visual Focus and FOV
Fixed, 67.2° diagonal
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.