The testo 871 thermal imager with high quality pixel detector, an integrated digital camera and, last but not the least, the innovative functions, combines high infrared resolution with professional measuring performance and easy handling. The testo thermography App enables the testo 871 to offer smart thermography to meet professional requirements in industry and trade.

DELIVERY SCOPE: Testo 871 thermal imager with radio module for Bluetooth/WLAN, USB cable, mains unit, lithium-ion rechargeable battery, pro software IRSoft (free download), 3 x testo ε-Markers, commissioning instructions, short instructions, calibration protocol and case.

  • Infrared resolution 240 x 180 pixels (with testo SuperResolution Technology 480 x 360 pixels) 
  • Thermal Sensitivity 90 mK
  • Integrated Digital Camera.
  • With testo Thermography App.
  • Wireless measurement data transfer from clamp meter testo 770-3 and humidity measuring instrument testo 605i.
  • With testo ScaleAssist and testo ε-Assist.


  • Detecting structural defects and ensuring building quality
  • Carrying out detailed energy consultancy
  • Investigating moisture damage
  • Support in preventive maintenance
  • Easy checking of heating systems and installations
  • Preventing mould formation
  • Testing the air tightness of new builds

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