FLIR Thermal Imaging

FLIR K75

Fireground thermal imaging camera with single-range operation, Responder App connectivity, IP67 protection, and 4-hour typical battery operation.

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Single-Range Firefighting TIC

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Product Profile

The K75 gives firefighters a modern single-range thermal camera for smoke-filled and high-heat environments. It is built to keep scene detail visible without range-switch pauses and adds Responder App support for setup, live-streaming, training, and media handling.

IR Resolution

320 × 240

Display

4" LCD, 640 × 480, backlit

Object Temperature Range

Single range solution operating: -20°C to 650°C (-4°F to 1202°F)

Image Modes

Basic, Search, Detection, High Heat, White Hot

Encapsulation

IP67 (IEC 60529)

Battery operating time

Approximately 4 hours @ 25°C (77°F) ambient temperature and typical use

Specifications

Highlighted

IR Resolution	320 × 240
Display	4" LCD, 640 × 480, backlit
Object Temperature Range	Single range solution operating: -20°C to 650°C (-4°F to 1202°F)
Image Modes	Basic, Search, Detection, High Heat, White Hot

Imaging & Optical

Contrast optimization	Digital enhancement, Flexible Scene Enhancement (FSX®)
Detector Type	Focal plane array (FPA), uncooled microbolometer
Field of view (FOV)	53° × 40°
Image Frequency	30 Hz
Image Modes	Basic, Search, Detection, High Heat, White Hot
IR Resolution	320 × 240
Non-radiometric IR video recording	MPEG4 to internal flash memory
Non-radiometric IR video streaming	Uncompressed colorized video using USB and MPEG-4 Stream over Wi-Fi to FLIR Responder app
Pitch	12 µm
Spectral Range	7.5 to 14 µm
Thermal Sensitivity/NETD	<60 mK
Zoom	2× digital zoom

Environmental & Certifications

Drop	2 m (6.6 ft.) on concrete floor (IEC 60068-2-31)
Encapsulation	IP67 (IEC 60529)
Humidity (Operating and Storage)	IEC 60068-2-30/24 h 95
Magnetic fields	EN 61 000-4-8, Test level 5 for continuous field (severe industrial environment)
Operating Temperature Range	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)
Vibration	2 g (IEC 60068-2-6)

Power

Battery capacity	5.8 Ah, at 20°C to 25°C (68°F to 77°F)
Battery operating time	Approximately 4 hours @ 25°C (77°F) ambient temperature and typical use
Battery Type	Li-Ion
Battery voltage	3.7 V
Charging system	Desktop 2-bay charger Optional in-truck charger
Charging Temperature	0°C to 45°C (32°F to 113°F)
Charging Time	<3 h to capacity enough for 3 h operation
Power Management	Automatic shutdown and sleep mode

Measurement & Analysis

Accuracy	±4°C (±7.2°F) or ±6% of reading, for ambient temperature 10°C to 35°C (50°F to 95°F)
Object Temperature Range	Single range solution operating: -20°C to 650°C (-4°F to 1202°F)

General

Package Includes	K75 infrared camera Battery (2 ea.) Battery charger Carabiner strap Power supply Printed documentation Retractable lanyard, 16 N (58 oz) USB cable

User Interface

Display	4" LCD, 640 × 480, backlit

Communication & Data Storage

Image Storage	Standard JPEG, stored in the camera and the FLIR Responder app
Image Storage Capacity	200 files in total
Interface	Update via OTA (Wi-Fi using the FLIR Responder app) Legacy support for updates from PC and data transfer to and from PC
Storage Media	Internal flash memory
USB	USB-C