The FLIR K75 Thermal Imaging Camera helps firefighters see through smoke, detect hidden fire spread, and identify hazards. Its single-range technology delivers uninterrupted, freeze-free imaging across a broad temperature span.
The K75 connects wirelessly to the FLIR Responder App, making it easy to configure, manage media, and stream live video for training or mission review. This integration turns the camera into both a frontline tool and a valuable resource for improving team performance.
The K75 includes multiple operating modes. Basic Mode supports initial fire attack and life-saving operations. Search Mode (80–200 °C / 175–400 °F) improves contrast for spotting hidden fire spread and overheated surfaces. Detection Mode highlights hot and cold spots instantly, aiding in search and rescue or overhaul tasks. For more demanding operations, High Heat Mode (250–650 °C / 500–1200 °F) shifts the range for offensive firefighting, while White Hot Mode improves convection visibility and provides an alternative for colour-blind users.
| Imaging and Optical Data | |
|---|---|
| IR Resolution | 320 x 240 |
| Thermal Sensitivity, NETD | <70 mK @ 30°C (86°F) over entire range |
| Field of View | 53° × 40° |
| Image Frequency | 30 Hz |
| Spectral Range | 7.5 to 14 μm |
| Pixel Pitch | 12 μm |
| Detector Type | Focal plane array (FPA), uncooled microbolometer |
| Image Representation | |
| Display | 4" LCD, 640 × 480, backlit |
| Display Frame Rate | 60 Hz |
| Temperature Range | Single range |
| Contrast Optimisation | Digital enhancement, Flexible Scene Enhancement (FSX) |
| Image Modes | Basic, Search, Detection, High Heat, White Hot |
| Zoom | 2x digital zoom |
| Measurement | |
| Object Temperature Range | Single range solution operating: -20°C to 650°C (-4°F to 1202°F) |
| Accuracy | ±4°C (±7.2°F) or ±6% of reading, for ambient temperature 10°C to 35°C (50°F to 95°F) |
| Video and Images | |
| Storage Media | Internal flash memory |
| Image Storage Formats | Standard JPEG |
| Media Gallery | Camera and Flir Responder app |
| Image Storage Capacity | 200 files in total (N.B. The total number of files varies depending on the number of saved video clips.) |
| Non-radiometric IR Video Recording | MPEG4 to internal flash memory |
| Non-radiometrics IR Video Streaming | Uncompressed colourised video using USB and MPEG-4 Stream over Wi-Fi to the FLIR Responder app |
| Data Communication Interfaces | |
| Interfaces | Update via OTA (Wi-Fi using the Flir Responder app) Legacy support for updates from PC and data transfer to and from PC |
| USB | USB-C |
| Wi-Fi | IEEE 802.11 b/g/n (2.4 GHz) |
| Bluetooth | Bluetooth v. 5.0 EDR + BLE, *PAN |
| Power System | |
| Battery Type | Li-Ion |
| Battery Voltage | 3.7 V |
| Battery Capacity | 5.8 Ah, at 20°C to 25°C (68°F to 77°F) |
| Battery Operating Time | Up to 4 hours @ 25°C (77°F) ambient temperature and typical use |
| Charging System | The battery is charged inside the camera 2-bay charger Optional in-truck charger |
| Charging Time | <3 h to capacity enough for 3 h operation |
| Charging Temperature | 0°C to 45°C (32°F to 113°F) |
| Power Options | Automatic shutdown and sleep mode |
| Environmental Data | |
| Operating Temperature Range | 150°C (302°F): 15 min 260°C (500°F): 5 min |
| Storage Temperature Range | -40°C to 85°C (-40°F to 185°F) |
| Humidity (Operating and Storage) | IEC 60068-2-30/24 h 95 |
| Relative Humidity | 95% relative humidity, 25°C to 40°C (77°F to 104°F) non-condensing |
| EMC | EN 301 489-1 RED EN 301 489-17 EN 55032 Class B (Emission) EN 55035 (Immunity) EN 61000-6-2 Immunity according to Industrial EN 61000-6-3 380-480MHz EN 61000-6-3 800-960MHz EN 60945 Maritime equipment FCC 47 CFR part 15 B, class B (Emission) ICES-003 |
| Magnetic Fields | EN 61 000-4-8, Test level 5 for continuous field (severe industrial environment) |
| Radio Spectrum | ETSI EN 300 328 ETSI EN 301 893 FCC 47 CFR part 15 RSS-247 |
| Encapsulation | IP67 (IEC 60529) |
| Shock | 25 g (IEC 60068-2-27) |
| Vibration | 2 g (IEC 60068-2-6) |
| Drop | 2 m (6.6 ft.) on concrete floor (IEC 60068-2-31) |
| Safety (Power Supply) | CE/EN/UL/CSA/PSE 60950-1 IEC 62368 |