Testo 890 - Thermal Imager

Brand: Testo

The testo 890 thermal imager means you are ideally equipped both for professional industrial thermography and for building thermography: e.g. for inspecting voltage systems, high-temperature measurement, circuit board analysis, control of solar plants, complete building shell thermography and building thermography for energy consultancy.

The testo 890 thermal imager with super-telephoto lens means you are ideally equipped for professional thermography involving long measuring distances: e.g. for inspecting high-voltage lines – even the smallest of connections can be thoroughly checked from greater distances.

You can also pinpoint hotspots on defective cells in large solar parks or visualize irregularities in large industrial plants (e.g. in refineries).
  • Up to 307,200 temperature measuring points: a detector size of 640 x 480 pixels guarantees accurate detection. SuperResolution technology even boosts image quality to 1280 x 960 pixels!
  • Thermal sensitivity < 40 mK:: even the smallest temperature differences can now be seen
  • You can also choose to save thermal images as JPEGs
  • Elevated Body Temperature (optional): use the assistant to check people for high body temperature in public places and in means of transport – for public health protection
  • Process analysis package (optional): the combination of fully radiometric video and sequence capturing in the camera enables wireless measurement and easier handling at the measuring location
  • The camcorder design with wrist strap, along with the rotatable, fold-out display, makes taking images considerably easier. This makes it possible for a wide variety of camera angles, as well as one-hand operation
  • Panorama image assistant: individual images are combined into a panoramic image as soon as they are taken. This means, for instance, that you can take thermal images of entire building shells without having to laboriously compile them or assess them individually
  • Site Recognition technology: with similar measurement objects, the thermal imager identifies measuring locations immediately, assigns them automatically and archives them accordingly
  • Optional high-temperature measurement up to 1,200 °C: with the high-temperature option, the measuring range can be flexibly extended up to 1,200 °C
  • Special measuring mode for detecting areas susceptible to mould: the dewpoint in the room is calculated by manually entering the ambient temperature and humidity. The surface temperature value measured by the camera is then compared to the dewpoint. The display now shows the risk of mould in traffic light colours (red, yellow, green). The optional radio humidity probe makes things easier: automatic transmission of readings means that manual input of humidity and ambient temperature is no longer needed
  • Voice recording (as comments on the images) possible with headset which is included in the scope of delivery
  • Integrated digital camera with power LEDs: you can take well-lit, real images to go with every thermal image - making documentation and assignment easier
  • Fever Detection (optional): use the assistant to check people for high body temperature in public places and in means of transport – for public health protection
  • Auto-focus for easy one-hand operation and less blurred images
  • Lens exchange possible
  • Minimum focus distance 10 cm
  • Analyze thermographic readings directly on the PC with the testo IRSoft professional software
  • Exchangeable lenses optionally available (42° standard/wide-angle lens and 15° telephoto lens)
  • Lenses - You are free to choose one from a total of three lenses:
    • 42° x 32° standard lens:
      • Ideal for inspecting closer measurement objects
      • Large field of view
    • 25° x 19° lens:
      • Ideal for use in applications involving preventive maintenance
    • 15° x 11° telephoto lens:
      • Makes it possible to take outstanding images of measurement objects at medium and longer distances
  • 6.6° x 5° super-telephoto lens
    • Compatible super-telephoto lens for the testo 890 thermal imager
    • Small field of view (6.6° x 5°) for maximum resolution of particularly distant objects
    • Easy to handle: no additional lens holder needed



Delivery Scope

  • Testo 890 Thermal Imager with SuperResolution and/or 6.6° Super-Telephoto Lens and SuperResolution
  • Lens (Choice between Standard, 25° and Telephoto Lens)
  • Robust Transport Case
  • Pro Software IRSoft (Free Download)
  • SD Memory Card
  • USB Cable for Data Transfer to the PC
  • Carrying Strap for Thermal Imager
  • Lens Cleaning Cloth
  • Mains Unit
  • Spare Li-ion Rechargeable Battery
  • Headset for Voice Recording
  • Lens Case
  • Fast Battery Charger
  • Lens Protective Glass

Standards & Warranty

  • EU-/EG-guidelines: 2004/108/EG

Infrared Image Output

  • Infrared Resolution: 640 x 480 pixels
  • Thermal Sensitivity: ˂ 40 mK at +30°C
  • Field of View: 42° x 32° (Standard lens), 25° x 19° (25° lens), 15° x 11° (Telephoto lens), 6.6° x 5° (Supertele)
  • Minimum Focus Distance: 0.1 m (Standard lens), 0.2 m (25° lens), 0.5 m (Telephoto lens), 2 m (Supertele)
  • Geometric Resolution (IFOV): 1.13 mrad (Standard lens), 0.68 mrad (25° lens), 0.42 (Telephoto lens), 0.18 (Supertele)
  • SuperResolution (Pixel): 1280 x 960 pixels
  • SuperResolution (IFOV): 0.71 mrad (Standard lens), 0.43 mrad (25° lens), 0.26 mrad (Telephoto lens), 0.11 mrad (Supertele)
  • Image Refresh Rate: 33 Hz¹
  • ¹Inside the EU, Outside 9 Hz
  • Focus: Auto / Manual
  • Spectral Range: 7.5 to 14.0 µm

Image Output Visual

  • Image Size: 3.1 MP
  • Minimum Focus Distance: 0.5 ft. / 0.5 m

Image Presentation

  • Display Type: 4.3" LCD touchscreen with 480 x 272 pixels
  • Digital Zoom: 1-; 3-fold
  • Color Palettes: 9 (iron, rainbow, rainbow HC, cold-hot, blue-red, grey, inverted grey, sepia, Testo)
  • Video Output: USB 2.0, Micro HDMI
  • Display Option: IR Image / Real Image


  • Measuring Range: -30°C to +100°C; 0°C to +350°C (Switchable); 0°C to +650°C (Switchable)
  • High Temperature Measuring: 2192°F (not in connection with the telephoto lens)
  • Accuracy: ±2% of reading
  • Emissivity: 0.01; 1
  • Reflected Temperature: Manual
  • Transmission Correction: Included
  • Accuracy High Temperature: ±2% of reading

Measuring Function

  • Surface Moisture Distribution: Included
  • Humidity Measurement: Optional
  • Solar Mode: Included
  • Analysis Function: Up to 10 Measurement Points, Hot/Cold Spot Recognition, up to 5 x Area Measurement (min/max & average), Isotherm and Alarm values
  • Humidity Measurement with Humidity Measuring Instrument: With Radio Humidity Probe; (Automatic measurement value transfer in real time)*
  • *Wireless humidity probes only in the EU, Norway, Switzerland, USA, Canada, Colombia, Turkey, Brazil, Chile, Mexico, New Zealand, Indonesia

Imager Equipment

  • Video Measurement: Up to 3 measurement points
  • Voice Recording: Bluetooth® / Wired Headset
  • Panorama Image Assistant: Included
  • Standard Lens: 42° x 32°
  • Digital Camera: Included
  • Interface: Labview, Free Download from Homepage; USB
  • Laser: Laser marker
  • Power-LED: Included
  • Process Analysis Package: Optional
  • JPEG Storage: Included
  • Site Recognition: Included
  • Exchangeable Lenses: 25° x 19°; 15° x 11°; 6.6° x 5°
  • Fever Detection: Optional
  • **** Bluetooth only in the EU, Norway, Switzerland, USA, Canada, Colombia, Turkey, Japan, Russia, Ukraine, India, Australia

Imager Storage

  • File Format Image: .bmt; software export option in .bmp; .jpg; .png; .csv; .xls
  • Storage Device: SD Cart 2GB (approx. 1500 - 2000 images)
  • File Format Video: .wmv; .mpeg-1; Testo format (fully radiometric video)

Power Supply

  • Battery Type: Fast-Charging, Li-ion Battery can be Changed On-Site
  • Operating Time: 4.5 hr
  • Charging Options: In Instrument / USB Charger
  • Power Supply: Yes

Ambient Condition

  • Air Humidity: 20 to 80 % RH Non-Condensing
  • Housing Protection Class: IP54
  • Vibration: 2G
  • Storage Temperature: -22.0°F to 140.0°F / -30°C to +60°C
  • Operating Temperature: 5°F to 122°F / -15°C to +50°C

Physical Specification

  • Dimensions: 10 x 5.2 x 4 in. / 253 x 132 x 111 mm
  • Weight: 57.497 oz. / 1,630 g
  • Tripod Mounting: ¼" - 20UNC
  • Housing: ABS

PC Software

  • System Requirements: Windows® 10; Windows Vista; Windows 7 (Service Pack 1); Windows 8; Interface: USB 2.0

  • Checking as Part of Electrical Maintenance
    • Checking Switch Cabinets
    • Checking Electrical Connections
    • Monitoring and Checking Photovoltaic Systems
    • Checking as Part of Mechanical Maintenance
  • Analysis of Power Distribution Systems
  • Analyzing Building Shells at a Glance
  • Providing Comprehensive Energy Advice
  • Making it Possible to See Critical Temperatures on Circuit Boards Precisely
  • Safe High-Temperature Measurement in Quality Assurance
  • Maintenance: Checking Hot Furnaces and Ladles
  • Inspecting High-Voltage Lines
  • Pinpointing Hotspots in Solar Parks (which can Indicate Defective Cells, for example)
  • Detecting Irregularities in Large Industrial Plants (Such as Refineries)
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