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Testo 872

The Testo 872 Thermal Imaging Camera depicts temperature from -30˚C to 650˚C via its high resolution thermal sensor (320 x 240 pixels). Measurements are accurate to ±2˚C or ±2% and the sensor has a thermal sensitivity of 60mK so temperature variations of just 0.06˚C can be indicated on screen. 
Ten different colour palettes on the Testo 872’s vibrant digital screen give the user plenty of choice when viewing heat patterns whilst two levels of digital zoom allow the camera to focus in on anomalous or interesting targets. The thermal imaging capabilities of the camera are complemented by a laser marker and digital camera which take accompanying photographs.
Two automatic adjustment functions help the user make the most of the Testo 872. Firstly, ScaleAssist automatically chooses an appropriate temperature range, thus highlighting the temperature differentials on screen and making images easier to analyse. Secondly, ɛ-Assist uses supplied emissivity markers to accurately adjust for different surfaces based on infrared emissivity.
Wireless communication is another important feature of the Testo 872. The camera can communicate via Bluetooth with the Testo 605i Thermohygrometer and 770-3 Clamp Meter in order to combine high-quality thermal images with accurate quantitive readings. WLAN, meanwhile, can be employed to wirelessly transfer image and video files to a smartphone or tablet provided that the receiving device has the Testo Thermography App (free for Android and iOS).
The Testo 872’s large 2.8GB internal memory has enough room for thousands of files and these can be transferred to a PC using the USB cable provided. Pro software is included which facilitates easier analysis of thermal images and video alongside any quantitive information and visible photographs taken during an inspection.
It is possible to use the Testo 872 outside thanks to its IP54-rated casing and four-hour battery life. Mains operation is also possible and the sturdy construction is ideally suited to everyday use. Accessories include a USB cable, software and a manufacturer’s calibration protocol whilst a two-year warranty guarantees against faults.
Key Features
  • Temperature range: -30˚C to 650˚C
  • Measurement accuracy: ±2˚C or ±2%
  • Thermal sensitivity: 60mK (0.06˚C)
  • Thermal resolution: 320 x 240 pixels
  • Automatic hot/cold spot recognition
  • Built-in laser marker and digital camera
  • ScaleAssist scale adjustment
  • ɛ-Assist emissivity compensation
  • Bluetooth connectivity to test equipment
  • WLAN communication with tablet/smartphone
  • 2.8GB internal memory
  • PC pro software included as standard
  • Two-year warranty

Infrared image output

  • Infrared resolution: 320 x 240 pixels
  • Thermal sensitivity (NETD): 60 mK
  • Field of view/min. focusing distance: 42° x 30° / < 0.5 m
  • Geometric resolution (IFOV): 2.3 mrad
  • testo SuperResolution (pixels/IFOV): 640 x 480 pixels / 1.3 mrad
  • Image refresh rate: 9 Hz
  • Focus: Fixed focus
  • Spectral range: 7.5 to14 µm

Visual image output

  • Image size / min. focusing distance at least: 3.1 MP / 0.5 m

Image presentation

  • Image display: 8.9 cm (3.5") TFT, QVGA (320 x 240 pixels)
  • Digital zoom: 2x, 4x
  • Display options: IR image / real image
  • Colour palettes: Iron, rainbow, rainbow HC, cold-hot, blue-red, grey, inverted grey, sepia, Testo, iron HT

Data interfaces

  • WLAN Connectivity: Communication with the Testo Thermography App
  • Bluetooth(1): Measurement value transfer from thermohygrometer testo 605i, clamp meter testo 770-3 (optional)
  • USB 2.0 Micro B: Yes


  • Measuring ranges: -30 to +100 °C / 0 to +650 °C
  • Accuracy: ±2 °C, ±2 % of measured value
  • Emissivity / reflected temperature compensation: 0.01 to 1 / manual
  • Testo ε-Assist: Automatic recognition of emissivity and determination of reflected temperature (RTC)

Measurement functions

  • Analysis functions: Mean point measurement, hot/cold-spot recognition, Delta T, area measurement (min-max on area)
  • Testo ScaleAssist: Yes
  • IFOV warner: Yes
  • Humidity mode – manual: Yes
  • Humidity measurement with humidity measuring instrument(1): Automatic measurement value transfer of thermohygrometer testo 605i via Bluetooth (instrument must be ordered separately)
  • Solar mode – manual: Input of solar radiation value
  • Electrical mode – manual: Input of current, voltage or power
  • Electrical measurement with clamp meter(1): Automatic measurement value transfer of clamp meter testo 770-3 via Bluetooth (instrument must be ordered separately)

Imager equipment

  • Digital camera: Yes
  • Lens: 42° x 30°
  • Laser(2): Laser class 2 
  • Video streaming: Via USB, via wireless LAN with testo Thermography App
  • Storage as JPG: Yes
  • Fullscreen mode: Yes

Image storage

  • File format: .bmt and .jpg; export options in .bmp, .jpg, .png, .csv, .xls
  • Memory: Internal memory (2.8 GB)

Power supply

  • Battery type: Li-ion battery can be changed on-site
  • Operating time: 4 hours
  • Charging options: In instrument/in charging station (optional)
  • Mains operation: Yes

Ambient conditions

  • Operating temperature range: -15 to +50 °C
  • Storage temperature range: -30 to +60 °C
  • Air humidity: 20 to 80 %RH, not condensing
  • Housing protection class (IEC 60529): IP54
  • Vibration (IEC 60068-2-6): 2G

Physical features

  • Weight: 510 g
  • Dimensions (LxWxH): 219 x 96 x 95 mm
  • Housing: PC - ABS

PC software

  • System requirements: Windows 10, Windows 8, Windows 7

Standards, tests, warranty

  • EU directive: EMC 2014/30/EU; RED 2014/53/EU
  • Warranty: 2 years

(1) Wireless permit in EU, EFTA, USA, Canada, Australia, Turkey
(2) excepting USA, China and Japan

  • Testo 872 Thermal Imaging Camera
  • Wireless module BT/wireless LAN
  • USB cable
  • Mains unit
  • Lithium ion rechargeable battery
  • Pro software
  • 3 x ε-markers
  • Quick-start guide
  • Short instructions
  • Calibration certificate
  • Case

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