Flir T-Series

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Quick Overview

Well experienced users of the thermal imaging cameras like service providers and professional building inspectors and demanding more from thermal imaging cameras. They want ergonomic systems that they can use several hours per day, cameras that offer high image quality and that are equipped with all the necessary features that will help them to save time when doing their everyday jobs. The T400bx Series are fully user friendly cameras well suited also for the first time user. 

For the building sector a compass has been integrated in the Flir T440bx. This way the inspector can see in which direction he is looking and to which direction a wall is orientated. This can be important information when doing building inspections. 

Flir Application Story

Flir T-Series

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Excellent ergonomics and good performance

The new Flir T400bx-Series and designed for the user looking for high performance at an affordable price. The Flir T400bx-Series combine excellent ergonomics with high image quality of 320 x 240 pixels. The Flir T400bx-Series come with a tiltable optical unit which makes it possible to measure and take images of objects in all angles, still in a comfortable working position. 

Main features of Flir Tools are:

  • Import images from the thermal imagaing camera to a PC
  • Lay out, move and resize measurement tools on any thermal image
  • Create PDF image sheets of specific images
  • Add headers, footers, logos to reports
  • Apply filters when seaching for images 
Users that need more reporting functionalities can choose Flir Reporter software which is also compatible with the new Flir T400bx-Series
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320 x 240 pixel resolution
The T400bx-Series has a thermal image resolution of 320 x 240 pixels. 

sensitivity 1  

Camera sensitivity
The FLIR T400bx-series has a thermal sensitivity of < 45 mK. 

visual camera

High quality visual camera
Both models in the FLIR T400bx-Series have an integrated 3.1 Mpixel digital camera. This makes observing and inspecting faster and easier.

accurate non temp measurement

Measurement range
The T400bx-Series can measure temperatures up to +650°C.


Interchangeable infrared lenses
The T400bx-Series features a standard 25° lens and optional 6°, 15°, 45° and 90° lenses.

interchange lens

Flexible interfaces
The T400bx-Series is equipped with standard video, USB outputs as well as a removable SD card


MPEG-4 video 
Create visual and infrared non radiometric MPEG-4 video files.



Thermal Fusion
Merges visual and thermal images to offer better analysis.

temperature alert

Temperature sound, image alarms 
Make surveying easier and faster.


Create an infrared overlay on your visual image. Scalable, moveable and resizable.

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Text and voice annotations
Text comments can be made from a pre-defined list or using the touch screen. A headset can be connected to make voice annotations.

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Sketch annotations
Use the touch screen as pen and paper to add sketch annotations.


Image sketch
Indicate problem areas directly on the thermal image.

video streaming

Radiometric IR video streaming 
16 bit radiometric IR video can be streamed to a PC (via USB) running the FLIR R&D software.


Image storage
FLIR uses a non proprietary radiometric JPEG image format that allows for post processing and report writing with Microsoft Word® based FLIR software.


Touch screen
3.5" LCD touch screen brings interactivity and user comfort to a new level.

measurement modes

Measurement Modes
Measurement spots, area with auto hot/cold spot indication, isotherms, ΔT calculation.

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Humidity Alarm/Insulation Alarm
The Relative Humidity Alarm alerts you to the areas where there is a risk of condensation. An Insulation Alarm shows the insulation performance of the building structure.

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Copy to USB
Transfer on board images or reports directly from the thermal imaging camera to a USB stick.

instant report

Instant reports
Create instant reports directly in camera, easily copy report to USB.


Multi Spectral Dynamic Imaging (MSX)
The innovative MSX feature produces an image more rich in every detail than ever before.


Connect to smartphone or tablet via Wi-Fi, using the FLIR Tools mobile app (Apple iOS and Android) for processing and sharing results as well as for remote control.

 compass  Compass
The direction in which the camera is looking is automatically added to every image


Model Number

FLIR T420 / T420bx

FLIR T440 / T440bx

FLIR T620 / T620bx

FLIR T640 / T640bx

  FLIR T420 Infrared Camera FLIR T440 Infrared Camera FLIR T620 Infrared Camera FLIR T640 Infrared Camera

FLIR T420 / T440 Datasheet

FLIR T420 bx / T440 bx Datasheet

FLIR T620 Datasheet

Accuracy ±2% or 2°C
IR Pixel Resolution 76,800 (320 × 240) 307,200 (640 × 480)
Thermal Sensitivity <0.045°C <0.04°C <0.035°C
Temperature Range -4°F to 1,202°F
(-20°C to 650°C)
Optional to 2,192°F (1,200°C)
bx: -4°F to 662°F (-20°C to 350°C)
-4°F to 2,192°F
(-20°C to 1,200°C)
bx: -4°F to 1202°F
(-20°C to 650°C)
-40°F to 1,202°F
(-40°C to 650°C)
Optional: to 3,632°F (2,000°C) bx:
-40°F to 662°F (-40°C to 350°C)
-40°F to 3,632°F
(-40°C to 2,000°C)
bx: -40°F to 1,202°F
(-40°C to 650°C)
Display Size / Format 3.5”/Landscape (Widescreen) 4.3”/Landscape (Widescreen)
Viewfinder - - - x
Measurement Modes 5 modes: 5 Spotmeters, 5 Area Boxes,
Isotherm, Auto hot/cold spot, Delta T
5 modes:10 Spots, 5 Area Boxes/Circles,
Isotherm, Auto hot/cold spot, Delta T
Spot Mode 5 moveable 10 moveable
Frame Rate 60 Hz 30 Hz
Field of View 25° × 19°
FOV Same as IR Lens x x x x
Optional Lenses 7: 6°, 15° Tele, 45° Wide, 90°; Close up: 100, 50 μm 6: 7° & 15° Tele, 45° Wide; Close-up: 80, 100, 50μm
Focus Manual and Automatic
Continuous Auto Focus - - - x
Min. Focus Distance 0.4 m (1.31 ft) 0.25 m (9.8 in.)
Radiometric JPEG to SD Card x x x x
MPEG4 to SD (Non-radiometric IR) x x x x
Thermal Palettes 12: Arctic, Gray, Iron, Lava, Rainbow, and Rainbow High Contrast (plus all inverted)
FLIR Tools for PC x x x x
Instant Report x x x x
Battery Operating Time >4hrs >2.5 hrs
Built-in Digital Camera 3.1 MP 5MP
Built-in Illuminator LED x x x x
Touchscreen x x x x
Digital Zoom 4x 8x 4x 8x
Insulation Alarm bx Model Only bx Model Only bx Model Only bx Model Only
Dewpoint Alarm bx Model Only bx Model Only bx Model Only bx Model Only
Meterlink® Connectivity x x x x
Laser Pointer x x x x
Laser Locator (on IR Image) x x x x
Compass - bx Model Only - bx Model Only
GPS - - x x
IR Window Correction x x x x
Delta T x x x x
Picture in Picture Scalable PIP   Scalable and Moveable  
Thermal / Visible Fusion x x x x
MSXTM Thermal Image Enhancement - x - x
Onscreen Sketching x x x x
Sketch on IR / Visual Image - x - x
Voice / Text Annotation x x x x
FLIR Tools Mobile app for
Apple® & Android™
x x x x
FLIR App Streaming Video x x x x
FLIR App Remote Control x x x x
Weight (Including Battery) 1.94 lbs (0.88 kg) 2.87 lbs (1.3 kg)


Prices from £7,600.00 

Product Simulator

Infrared Cameras and Their Use in the Building Industry - A Guide

Flir Application Story


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