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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±5°C (±9°F)‎ for ambient temperature 15°C to 35°C (59°F to 95°F)‎ and object temperature above 0°C (32°F)‎
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
Field of view (FOV)
25° lens: 25° × 19° 6° lens: 6.4° × 4.9°
Focal Length
25° lens: 18 mm 6° lens: 74 mm
IR Resolution
320 × 240 (76,800) pixels
Object Temperature Range
–20°C to ‎70°C (–4°F to 158°F)‎
Web interface
0.82 kg (1.8 lbs)
Contrast Enhancement
Histogram equalization (IR only) for RTSP and GVSP video streaming, Image Source 0
Size [L × W × H]
123 × 77 × 77 mm (4.84 × 3.03 × 3.03 in)
FLIR Screen-EST Mode
Connections & Communications
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
Wi-Fi standard – IEEE802.11a/b/g/n
RTSP Protocol, GVSP (GigE Vision) Protocol
RTSP Protocol, GVSP (GigE Vision) Protocol
Serial Communication
Pan and tilt control: RS232 and RS485 exclusively
Connection Type
Wi-Fi: Peer to peer (ad hoc) or infrastructure (network)
Visual Focus and FOV
Fixed, 67.2° diagonal
IP 54 (IEC 60529)‎ IP66 with accessory
Imaging & Optical
Detector Pitch
25 µm
Focal Plane Array (FPA) - Spectral range
Uncooled microbolometer/7 – 8.5 µm
One-shot contrast, motorized, manual
Image Frequency
30 Hz
Minimum Focus Distance
0.3 m (0.98 ft) for 25° lens; 5 m (16.4 ft) for 6° lens
Spatial resolution (IFOV)
1.4 mrad/pixel
Spectral Range
7 – 8.5 µm
Visual Resolution
1280 × 960 pixels
Image Source 0: RTSP Protocol: with, without; GVSP (GigE Vision) Protocol, with, without,
Video Lamp
Built-in LED light
Thermal Resolution [NETD]
<25 mk at 30°C (86°F)
Gas Sensitivity [NECL]
CH4 (<100 ppm × m), N2O (<75 ppm × m), C3H8 (<400 ppm × m); ΔT = 10°C, distance = 1 m
Measurement & Analysis
Measurement Corrections
Global object parameters
Correction Options
Atmospheric, optics transmission, emissivity, reflected apparent temperature, external optics/window
Optional feature; Control standard – Pelco D
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
PoE or external
External Voltage
Allowed range 18-56 VDC, 8 W max
Related Documents
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.