• 80mK thermal sensitivity (NETD)
  • -4 to 536°F (-20 to 280°C) temp range
  • 9 Hz image refresh rate
  • 32° x 23°; 7in min focus standard lens
  • 0.01 to 1 emissivity correction


The Testo 875-1 thermal imager features a 32° x 23° high-quality, standard lens and a temperature sensitivity (NETD) of 80 mK. The NETD indicates the smallest possible temperature difference that can be resolved by the imager. The Testo 875-1 thermal imager has a temperature measurement range from -20 to 280°C, refresh rate of 9 Hz, manual focus and automatic hot/cold spot recognition. With automatic hot/cold spot recognition, the coldest and warmest spot of the measurement area are automatically shown in the display.

Testo 875-1 thermal imager kits ship complete with:

  • Hard shell case
  • IRSoft PC software
  • 2GB SD card
  • USB cable
  • Battery charger
  • Li-ion rechargeable battery
  • Tri-pod adapter