FLIR
K55
The K55 displays crisp thermal images on a bright LCD, helping you navigate better and expedite critical decisions. The 320 x 240 pixel IR sensor and FSX™ Flexible Scene Enhancement produce detail-rich imagery at a 60 Hz frame rate that keeps up with the action.

K55
Thermal Imaging Camera for Firefighters
The FLIR K55 allows firefighters to see more clearly in the harshest environments, maneuver more strategically, stay better oriented, and find victims faster.
This camera displays 320 x 240 pixel thermal images and can record up to 200 jpegs and/or video clips. Featuring FSX® Flexible Scene Enhancement technology, the K55 produces ultra-sharp, fine textured images that show subtler details, allowing firefighters to see far more than is possible with the naked eye.
The K55 enables first responders to find their way through the darkest environments, identify targets in extreme temperature settings, and make better decisions when seconds count.
CRISP, CLEAR IMAGERY
The maintenance-free sensor produces detail-rich 320 x 240 pixels thermal images to help you navigate easier in smokey conditions.
IN-CAMERA VIDEO STORAGE
Store up to 200 photos or video files that can be played-back in-camera or from a computer for later analysis.
EXPANDED WARRANTY
K55 cameras are protected by FLIR's 2-5-10 Warranty: 2 years for batteries, 5 for the camera, and 10 years for the detector.
COMPACT, RUGGED, AND EASY TO USE
Glove-friendly three-button design for straight forward operation
Intuitive user interface allows first responders to stay focused on the situation at hand
Water-resistant (IP67), and rugged enough to withstand drops from 2 m (6.6 ft) onto concrete
Fully operational at temperatures up to 500°F/260°C (max. 5 minutes)
UNCOMPROMISING CLARITY AND RESOLUTION
Detail-rich images help you see clearly and move safely in smoky conditions
320 × 240 (76,800 pixel) resolution and a rapid refresh-rate (60 Hz) help orient you on the scene
FLIR FSX digital processing adds edge detail for greater perspective and increased navigational capabilities
Records up to 200 images or video clips with a simple trigger-pull
IMPROVED TACTICAL DECISION-MAKING
High-quality imaging can be standard issue for every firefighter
Provides clear visual information needed to make crucial tactical decisions
Fixed temperature scale with TI Basic Mode allows for quick reference in rapidly evolving conditions without confusing changes
Stored thermal images and videos may be accessed for on-site assessment, off-site analysis, or training purposes
Device Specifications
- IR Resolution
- 320 × 240 pixels
- Display
- 4 in. LCD, 320 × 240 pixels, backlit
- Object Temperature Range
- –20°C to 150°C (–4°F to 302°F) 0°C to 650°C (32°F to 1202°F)
- Image Modes
- IR image TI Basic fire-fighting mode Black-and-white fire-fighting mode Fire mode Search-and-rescue mode Heat detection mode Thumbnail gallery
- Camera weight incl battery
- 1.1 ±0.05 kg (2.4 ±0.1 lb.)
- Camera size (L x W x H)
- 120 × 125 × 280 mm (4.7 × 4.9 × 11 in.)
Imaging & Optical
- Contrast optimization
- Digital image enhancement using FSX
- Depth of Field
- 0.84 m to infinity (33 in. to infinity)
- Detector Type
- Focal plane array (FPA), uncooled microbolometer
- Field of view (FOV)
- 51° × 38°
- f-number
- 1.25
- Focal Length
- 9 mm (0.35 in.)
- Focus
- Fixed
- Image Frequency
- 60 Hz
- Image Modes
- IR image TI Basic fire-fighting mode Black-and-white fire-fighting mode Fire mode Search-and-rescue mode Heat detection mode Thumbnail gallery
- IR Resolution
- 320 × 240 pixels
- Non-radiometric IR video recording
- MPEG-4 to internal flash memory
- Non-radiometric IR video streaming
- Uncompressed colorized video using USB
- Pitch
- 25 µm
- Spatial resolution (IFOV)
- 2.8 mrad
- Spectral Range
- 7.5–13 µm
- Storage Capacity
- 200 files in total, with a maximum duration of 30 minutes. The total number of files is co-dependent on the number of saved images.
- Thermal Sensitivity/NETD
- < 30 mK @ 30°C (86°F)
- Zoom
- 2× digital zoom
Environmental & Certifications
- Directives
- Designed to meet NFPA 1801:2018 specification: Vibration Impact acceleration resistance Corrosion Viewing surface abrasion Heat resistance Heat and flame Product label durability
- Drop
- 2 m (6.6 ft.) on concrete floor (IEC 60068-2-31)
- EMC
- EN 61000-6-2:2005 (Immunity) EN 61000-6-3: 2011 (Emission) FCC 47 CFR Part 15 B (Emission)
- Encapsulation
- IP 67 (IEC 60529)
- Humidity (Operating and Storage)
- IEC 60068-2-30/24 h 95% relative humidity 25°C to 40°C (77°F to 104°F) / 2 cycles
- Magnetic fields
- EN 61 000-4-8, Test level 5 for continuous field (severe industrial environment)
- Operating Temperature Range
- –20°C to 85°C (–4°F to 185°F) 150°C (302°F): 15 min. 260°C (500°F): 5 min.
- Relative Humidity
- 95% relative humidity 25°C to 40°C (77°F to 104°F) non-condensing
- Shock
- 25 g (IEC 60068-2-27)
- Storage Temperature Range
- –40°C to +85°C (–40°F to +185°F)
- Tripod Mounting
- UNC ¼"-20 (adapter needed)
- Vibration
- 2 g (IEC 60068-2-6)
Power
- Battery capacity
- 4.4 Ah, at 20°C to 25°C (68°F to 77°F)
- Battery operating time
- Approx. 4 hours at 25°C (77°F) ambient temperature and typical use
- Battery Type
- Li-Ion
- Battery voltage
- 3.6 V
- Battery weight
- 0.152 kg (0.3 lb.)
- Charging system
- Battery is charged inside the camera 2-bay charger Optional In-truck charger
- Charging Temperature
- 0°C to 45°C (32°F to 113°F)
- Charging Time
- 2 h to 85% capacity, charging status indicated by LEDs
- Power Management
- Automatic shutdown and sleep mode
- Safety [power supply]
- CE/EN/UL/CSA/PSE 60950-1
- Start Up Time
- <17 s. (IR image, no GUI)
- Start-up time from sleep mode
- < 4 s.
Measurement & Analysis
- Accuracy
- ±4°C (±7.2°F) or ±4% of reading, for ambient temperature 10°C to 35°C (50°F to 95°F)
- Auto Range
- Yes, selectable on/off using FLIR Tools®
- Automatic Hot Detection
- Heat detection mode (the hottest 20% of the of scene is colorized)
- Camera size (L x W x H)
- 120 × 125 × 280 mm (4.7 × 4.9 × 11 in.)
- Camera weight incl battery
- 1.1 ±0.05 kg (2.4 ±0.1 lb.)
- Isotherm
- Yes
- Languages
- English
- Object Temperature Range
- –20°C to 150°C (–4°F to 302°F) 0°C to 650°C (32°F to 1202°F)
- Set-up Commands
- Local adaptation of units, date and time formats
- Spot Meter
- 1
General
- Compatible with FLIR software
- FLIR Tools®
- Material
- PPSU Silicon rubber Aluminium, cast Flame-resistant magnesium alloy
- Packaging Size
- 500 × 190 × 370 mm (19.7 × 7.5 × 14.6 in.)
User Interface
- Display
- 4 in. LCD, 320 × 240 pixels, backlit
- Report Generation
- Separate software (FLIR Tools)
Communication & Data Storage
- File Formats
- Standard JPEG
- Image Storage
- Standard JPEG; Image freeze: configurable
- Image Storage Capacity
- 200 files in total. The total number of files is co-dependent on the number of saved video clips.
- Image Storage Mode
- IR only
- Interface
- Update from PC devices Data transfer to and from PC
- Storage Media
- Internal flash memory
- USB
- USB Mini-B