Subscribe to our newsletter


High-Performance Thermal Camera with Viewfinder

View Datasheet > T840


The FLIR T840 infrared camera is designed to help electric utility and other thermography professionals comfortably survey equipment both indoors or outdoors and seek out signs of failure all day long. Thanks to an integrated eyepiece viewfinder and a bright 4-inch color LCD display, the T840 makes it easy to conduct inspections outside in bright, challenging light conditions. The 180° rotating lens platform and thoughtful ergonomic design helps users quickly diagnose failing components in hard-to-reach areas. A 6° telephoto lens option is available to ensure accurate temperature measurement of small targets from farther distances.


Additional information


±2°C (±3.6°F) or ±2% of reading

IR Resolution

464 x 348 (161, 472 pixels)

Laser Pointer


Object Temperature Range

-20°C to 120°C (-4°F to 248°F); 0°C to 650°C (32°F to 1202°F); 300°C to 1500°C (572°F to 2732°F)

Programmable Buttons



Predefined list or touchscreen keyboard

Time Lapse

10 sec to 24 hrs


60 sec. recording added to still images or video via built-in mic (has speaker) or via Bluetooth

Weight & Dimensions (without lens)

1.3 kg (2.9 lbs), 140 x 201 x 84 mm (5.5 x 7.9 x 3.3 in)

Communication Interfaces

USB 2.0, Bluetooth, Wi-Fi

Storage Media

Removable SD card

Video Out

DisplayPort over USB Type-C

Operating Temperature Range

-15°C to 50°C (5°F to 122°F)

Storage Temperature Range

-40°C to 70°C (-40°F to 158°F)

Shock & Vibration & Encapsulation

25 g / IEC 60068-2-27, 2 g / IEC 60068-2-6 / IP 54; EN/UL/CSA/PSE 60950-1

Color palettes

Iron, Gray, Rainbow, Arctic, Lava, Rainbow HC

Detector Type and Pitch

Uncooled microbolometer, 17 µm

Digital Camera

5 MP, with built-in LED photo/video lamp

Digital Zoom

1-6x continuous




Continuous with laser distance meter (LDM), one-shot LDM, one-shot contrast, manual

Global Positioning System [GPS]

Automatic image tagging

Image Frequency

30 Hz

Image Sketch

From touchscreen, on infrared image only

Lens Identification


Minimum Focus Distance

lens – 1.0 m;

Non-Radiometric IR or Visual Video

H.264 to memory card

Non-radiometric IR video streaming

H.264 or MPEG-4 over Wi-Fi MJPEG over UVC or Wi-Fi


Resizable and movable

Radiometric IR video recording

Real-time radiometric recording (.csq)

Radiometric IR video streaming

Yes, over UVC or Wi-Fi

Spectral Range

7.5 – 14.0 µm




Quadruples pixel count; activated in menu and processed in FLIR Tools

UltraMax Resolution

645, 888 effective pixels


4", 640 x 480 pixel touchscreen LCD with auto-rotation

Battery operating time

Approx. 4 hours at 25°C (77°F) ambient temperature and typical use

Battery Type

Li-ion battery, charged in camera or on separate charger


nfrared camera with lens, small viewfinder eyecup, 2 batteries, battery charger, hard transport case, lanyards, front lens cap, power supplies, printed documentation, SD card (8 GB), cables (USB 2.0 A to USB Type-C, USB Type-C to HDMI, USB Type-C to USB Type-C)

Image File Format

Standard JPEG with measurement data included

Image Storage Mode

Infrared, visual, MSX®, Picture-in-Picture

Please leave your details below so we can get in touch with you.

Contact Info