Uncooled OGI camera for CH₄, SF₆, NH₃ & C₂H₄ detection with 320×240 IR and thermal imaging.
FLIR GF77 is an uncooled optical-gas imaging camera that visualizes leaks of gases like CH₄, SF₆, NH₃, and C₂H₄. With a 320×240 IR sensor and interchangeable lenses, it enables both gas detection and thermal inspections — ideal for utilities, industry, and safety surveys.
| Specification | Detail |
|---|---|
| IR Resolution | 320 × 240 pixels |
| Detector Type / Pitch | Uncooled microbolometer, 25 µm |
| Spectral Range | LR lens: 7–8.5 µm · HR lens: 9.5–12 µm |
| Thermal Sensitivity (NETD) | < 25 mK (25° lens) / < 40 mK (6° lens) at 30 °C |
| Gas Sensitivity (NECL) | SF₆ <1 ppm·m, NH₃ & C₂H₄ <20 ppm·m, CH₄ <100 ppm·m (lens-dependent) |
| Field of View (FOV) | 25° × 19° (wide) · 6.4° × 4.9° (telephoto) |
| Digital Zoom | 1–6× continuous |
| Frame Rate | 30 Hz |
| Temperature Range | –20 °C to 500 °C |
| Accuracy | ±3 °C or ±3% of reading |
| Display | 4″ touchscreen LCD + 5 MP visible camera |
| Minimum Focus Distance | 0.3 m (wide lens) |
| Connectivity / Storage | USB, Wi-Fi, Bluetooth, SD card |
| Battery Life | > 4 hours typical |
| Environmental Rating | IP54, operating –15 °C to 50 °C |
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