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The FLIR K53 offers the reliable clarity and performance firefighters need to work quickly and safely in the smokiest environments. This TIC features FSX™ Flexible Scene Enhancement, which intensifies structural and textural details in thermal images. Thanks to the K53’s enhanced perspective and orientation, firefighters gain better situational awareness as well as a greater sense of confidence and safety.

• Firepower Simplified — One glove-friendly button starts the K53 in TI-Basic mode, while one trigger-pull captures stills or records video.
• Uncompromising Visual Quality — 320 × 240 resolution, a 60 Hz frame rate, and a bright 4″ LCD all help you see more in smokey conditions.
• Affordability Redefined — The K53’s affordable price helps fire and rescue departments get essential tools into the hands of those who could use them most.
Accuracy: ±4°C (±7.2°F) or ±4% of reading, for ambient temperature 10°C to 35°C (50°F to 95°F)
Detector Type: Focal plane array (FPA), uncooled microbolometer
Field of view (FOV): 51° × 38°
Focal Length: 9 mm (0.35 in.)
IR Resolution: 320 × 240 pixels
Object Temperature Range: –20°C to 150°C (–4°F to 302°F) 0°C to 650°C (32°F to 1202°F)
Packaging Size: 500 × 190 × 370 mm (19.7 × 7.5 × 14.6 in.)
Report Generation: Separate software (FLIR Tools)
Thermal Sensitivity/NETD: <30 mK @ 30°C (86°F)
Compatible with FLIR software: FLIR Tools®
Interface: Update from PC devices Data transfer to and from PC
Storage Media: Internal flash memory
Directives: Designed to meet NFPA 1801:2013 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)
Camera weight incl battery: 1.1 ±0.05 kg (2.4 ±0.1 lb.)
Contrast optimization: Digital image enhancement using FSX
Depth of Field: 0.84 m to infinity (33 in. to infinity)
f-number: 1.25
Focus: Fixed
Image Frequency: 60 Hz
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.
Isotherm: Yes
Spot Meter: 1.0
Auto Range: Yes, selectable on/off using FLIR Tools®
Display: 4 in. LCD, 320 × 240 pixels, backlit
Camera size (L x W x H): 120 × 125 × 280 mm (4.7 × 4.9 × 11 in.)
Languages: English
Set-up Commands: Local adaptation of units, date and time formats
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.
Material: PPSU Silicon rubber Aluminum, cast Flame-resistant magnesium alloy
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


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