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    • FLIR

    FLIR K55 Thermal Imaging Camera – 320×240 Sensor, FSX® Enhancement, 60Hz

    The FLIR K55 shows clear 320×240 thermal images with FSX® enhancement and a 60Hz refresh rate—built to support fast decisions in fireground operations.

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    Description

    FLIR K55

    Clear Vision. Faster Decisions. Proven in the Fireground.

    The FLIR K55 Thermal Imaging Camera is purpose-built for firefighters who need reliable visibility in the most hazardous environments. With a 320 × 240 pixel infrared sensor and FSX® Flexible Scene Enhancement, the K55 produces sharp, high-contrast thermal images that reveal fine details—helping you move with confidence, locate victims faster, and assess fire conditions in real time.

    The K55 features a bright, easy-to-read LCD display and operates at a smooth 60Hz frame rate, keeping pace with fast-moving situations. Whether you’re navigating dense smoke, conducting a primary search, or checking for hot spots during overhaul, this thermal camera ensures critical visual information is never out of reach. Designed for extreme conditions, the FLIR K55 is rugged and fireground-tough, enabling thermal image capture at the push of a button. With storage for up to 200 images or video clips, it also supports post-incident review, training, and documentation.

    Features

    • CRISP, CLEAR IMAGERY

    • IN-CAMERA VIDEO STORAGE

    • EXPANDED WARRANTY

    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

    • Up to 16-hour mission time with two 8-hour, hot-swappable batteries included

    • 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

    • GFixed 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

    Specifications

    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/NETD
    < 30 mK @ 30°C (86°F)
    Zoom
    2× digital zoom

    Enviromental & Certification

    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

    Resources

    K55 Datasheet

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