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.


Personal TIC

The K53 is an easy-to-use thermal imaging camera (TIC) that offers affordability without sacrificing the reliability, clarity, or performance first responders expect from FLIR. The K53 features FLIR's patented FSX® Flexible Scene Enhancement, which intensifies thermal images' structural and textural details.

The enhanced perspective improves firefighters' orientation and tactical decision-making capabilities. First responders gain a sense of confidence and safety as they forge ahead to fight fires and save lives.

FLIR now gives you a new lower-cost, easier-to-use option without sacrificing the reliable clarity and performance that FLIR K-Series TICs are well-known for. The K53 features FLIR’s FSX Flexible Scene Enhancement that intensifies structural and textural details in thermal images for better perspective and orientation to help improve situational awareness and give firefighters a greater sense of confidence and safety.

  • Firepower Simplified

  • Uncompromising Resolution

  • Affordability Redefined

  • Vivid FSX Thermal Images

  • Streamlined High Performance Made even more affordable

Streamlined High Performance

Simple, single-button glove-friendly control; straightforward operation

  • Compact and lightweight enough to carry anywhere or attach to your gear

  • Water resistant (IP67) and rugged enough to withstand a 2-meter drop onto concrete

  • Fully operational at temperatures up to 500°F/260°C (max. 3 minutes)

Uncompromising Clarity and Resolution

Detail-rich images help you see clearly and move safely in smoky conditions

  • K33 240 × 180 (43,200 pixel) resolution and K53 320 × 240 (76,800 pixel) resolution to see clearly in smoky environments

  • - Rapid refresh-rate (60 Hz) for better on-scene orientation

  • FLIR FSX digital processing adds edge detail for greater perspective and increased navigational capabilities

  • Bright and easy to see 4" LCD display

Improved Tactical Decision-Making

High-quality imaging can be standard issue for every firefighter

  • Affordable enough for fire crews to have multiple TICs in use at a fire scene

  • Provides clear visual information needed to make crucial tactical decisions

  • Stores thermal images and video clips to access for on-scene review or to produce scene incident reports

Thermal Imaging and optical data

IR Resolution
320 × 240 (76,800)
Refresh Rate
60 Hz
Thermal Sensitivity/NETD
<30 mK @86°F (30°C)
Field of View (FOV)
51° × 38°
Focal plane array
Uncooled microbolometer, 7.5 - 13 µm
Start-up time
<17 sec (IR image, no GUI)

Image Presentation

320 × 240 pixel, 4 in backlit LCD
Selectable on/off in FLIR Tools
Image modes (switch in FLIR Tools)
Fixed color scale, TI Basic
Flexible Scene Enhancement


Object Temperature Range
-4°F to 302°F (-20°Cto 150°C)
32°Fto 1202°F (0°Cto 650°C)
±7.2°F (±4°C) or ±4% of reading for ambient temperature 50°F to 95°F (10°Cto 35°C)

Data Storage, transfer and compatibility

USB Type
USB mini-B
Update from PC devices, data transfer to and from PC
Works with FLIR Tools Software
Image/Video Storage
Up to 200 image or video files (max. duration of 5 min)
Video Streaming
Uncompressed video over USB


Operating Temperature Range
-4°F to 185°F (-20°C to 85°C) - infinity;
302°F (150°C) - 15 minutes;
500°F (260°C) - 3 minutes
Storage Temperature Range
-40°F to 185°F (-40°C to 85°C)
Battery Type and Voltage
Li-ion, 3.6V rechargeable
Battery Operating Time
Approximately 4 hours at 77°F (25°C) and with typical use
Charging Time
2h to 85% capacity
6.6 ft (2m)
Weight w/ Battery
1.54lbs (0.7kg)
Size (L × W × H)
4.7 × 4.9 × 11in (120 × 125 × 280mm)
Tripod Mount
UNC ¼”-20

Introducing the FLIR K33 & K53 Thermal Imaging Cameras for Firefighters