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. Pair the T840 with a FLIR FlexView™ dual field of view lens for the convenience to instantly switch from wide-area to telephoto scanning. A 6° telephoto lens option is also available to ensure accurate temperature measurement of small targets from farther distances.
All FLIR T-Series cameras now come with a free credit to attend a FLIR Academy training session

Specifications
IR Resolution
464 × 348 (161,472 pixels)
Thermal Sensitivity/NETD
<40 mK at 30°C (24° lens)
Accuracy
±2°C (±3.6°F) or ±2% of reading
Digital Camera
5 MP, with built-in LED photo/video lamp
Display
4″, 640 x 480 pixel touchscreen LCD with auto-rotation
Storage Media
Removable SD card
Imaging & Optical
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
f-number
1.3/1.3
Focal Length
29 mm (1.41 in) / 17 mm (.67 in)
Focus
Continuous with laser distance meter (LDM), one-shot LDM, one-shot contrast, manual
Image Frequency
30 Hz
IR Resolution
464 × 348 (161,472 pixels)
Lens
DFOV (24°, 14°)
Lens Identification
Automatic
Minimum Focus Distance
.18 m (.59 ft), 24° / 1.0 m (3.28 ft), 14°
Minimum Focus Distance with MSX
.5 m (1.64 ft) / 1.0 m (3.28 ft)
Non-radiometric IR video streaming
H.264 or MPEG-4 over Wi-Fi MJPEG over UVC or Wi-Fi
Picture-in-Picture
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
Thermal Sensitivity/NETD
<40 mK at 30°C (24° lens)
UltraMax
Quadruples pixel count; activated in menu and processed in FLIR Tools
Viewfinder
Yes
Measurement & Analysis
Accuracy
±2°C (±3.6°F) or ±2% of reading
Measurement Presets
No measurement, center spot, hot spot, cold spot, User Preset 1, User Preset 2
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)
Spot Meter
3 ea. in live mode
User Interface
Display
4″, 640 x 480 pixel touchscreen LCD with auto-rotation
Text
Predefined list or touchscreen keyboard
Voice
60 sec. recording added to still images or video via built-in mic (has speaker) or via Bluetooth
Power
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
Environmental & Certifications
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)
General
Compatible with FLIR software
FLIR Thermal Studio Suite, FLIR Route Creator, FLIR Ignite, FLIR Research Studio, FLIR Atlas SDK
Laser Pointer
Yes
Packaging
Infrared 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)