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The HT INSTRUMENTS THT45 Thermal Imager is a professional compact infrared and visible 80×80 pixel camera equipped with a very bright 2.8″ display and a frequency response of 50Hz, intended for infrared non-contact temperature measurement from -20°C to 350°C. The THT45 also contains a perfectly-aligned video camera that allows picture-in-picture fusion of visible and infrared images to simplify the detection and analysis of temperature-related issues. The camera features a 32x electronic zoom, and still or video images can be stored via the microSD slot or a USB2.0 connector.  An HDMI connector is also provided for a larger simultaneous display. The THT45 contains a built-in laser pointer for accurately locating temperature faults, as well as LED illumination for improved visible images.

The HT INSTRUMENTS THT45 is ideal for detection of thermal issues due to problems in electrical systems, mechanical and hydraulic systems, air conditioning, automobile servicing, etc.


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SKU: HT INSTRUMENTS THT45 Categories: , Tags: ,


  • Infrared temperature measurement ranging from -20°C to 350°C
  • Built-in photo camera for a visual image
  • PiP fusion function
  • 3 selectable measuring cursors
  • Table with emissivity values of common material
  • 4 standard color palettes
  • Electronic zoom x1-x32
  • Automatic detection of hot/cold spots of the image
  • Storage of JPG images on external micro SD card
  • IR sensor resolution: 80×80
  • USB port for PC connection and image transfer
  • MPEG4 video recording on micro SD card
  • Video and microphone output
  • Built-in laser pointer and illuminator
  • Rechargeable Li-ION battery
  • Analysis and printing of images with the dedicated software provided


  • Focal lens 9mm
  • Li-ION rechargeable battery
  • Battery charger + universal plugs
  • Micro SD card 8GB
  • USB cable
  • Video cable
  • Earphone set
  • Wrist strap
  • THTLink Windows software
  • ISO9000 calibration certificate
  • Carrying bag
  • Quick reference guide
  • User manual on CD-ROM


IR sensor resolution 80 x 80
Temperature range -20 ÷ 350°C / -4 ÷ 662°F
Thermal sensitivity < 0.1°C @ 30°C
NETD < 100mK
Spectrum range 8 ÷ 14μm
IFOV (@1m) 3.78mrad
Type of IR sensor UFPA
Frequency 50Hz
Field of view (FOV) 17° X 17°
Focus width of standard lens 9mm
Focusing of IR optics Manual
Resolution and FOV of integrated camera 1.3Mpxl, FOV 59°
Fusion PiP function for combination of thermal and visual images
3 cursors: Central, Min, Max.
Correction according to distance, reflected temperature and relative humidity Only reflected temperature
8 standard + 10 custom colour palettes 4 standard, no custom
Integrated table with emissivity values of common materials
Readings in °C, °F, °K
Class 2 laser pointer
Integrated white light illuminator
Digital zoom 1x ÷ 32x
Manual and automatic span
Standard format of saved images JPEG
Saving of IR videos in MPEG4 format
Power supply with rechargeable battery
USB interface to PC and THTLink software
PAL/NTSC video output HDMI
Battery type Rechargeable Li-ION 3,7V 2000mAh
Recharging system On thermal cameraa
Duration 4 hours
External power supply External power supply 100/240VAC (50/60Hz)/5VDC
Operating temperature -15°C ÷ 50°C
Operating humidity 10% ÷ 90%HR
-40°C ÷ 70°C
Storage humidity 10% ÷ 90%HR
Mechanical protection IP50 in compliance with IEC529
Shock 25G, in compliance with IEC60068-2-29
Vibrations 2G, in compliance with IEC60068-2-6
Drop test 2m
Size (LxWxH) (mm) 224 x 77 x 96mm
Weight in grams (batteries included) 0.5kg


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