testo 862-2 – pocket-sized thermal imager | 256 x 192 pixels
Get even more detailed thermal images in seconds with a robust pocket-sized thermal camera – developed for fast diagnostics and efficient documentation.
- High-resolution thermal images with 256 × 192 pixels and Fusion technology for clearer analysis
- Smart functions such as Delta T, hotspots/coldspots, and moisture damage analysis
- Wireless connection to testo 605i and testo 770-3 for extended measurement data
- Robust construction with IP54 and drop resistance up to 1.5 meters
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testo 862-2 gives you fast and reliable answers about surface temperatures – right on site.
It is developed for professional users in ventilation, refrigeration, heating, industrial maintenance, facility management, and building inspections where fast troubleshooting and clear results are crucial.
The higher IR resolution of 256 × 192 pixels and the high thermal sensitivity provide even more detailed thermal images, while the Fusion feature combines thermal and visible images for easier analysis. With intelligent features such as automatic Delta T calculation, hotspot/coldspot identification, and moisture risk analysis, you get effective support that speeds up inspections and provides a more reliable basis for decision-making.
For even greater flexibility, the testo 862-2 can be connected wirelessly to compatible Testo instruments, providing more measurement values and more efficient documentation. With an IP54 protection rating and drop resistance up to 1.5 meters, it’s built to withstand demanding work environments—every day.
Benefits
- Sharp thermal images – IR resolution of 256 × 192 pixels and a thermal sensitivity of < 50 mK provide clear and detailed thermal images. The Fusion function combines thermal and real images for easier interpretation.
- Fast diagnostics – Integrated alarms, hotspot/coldspot identification, automatic Delta T calculation, DeltaHeat for checking heating elements, and intelligent moisture risk analysis streamline the inspection.
- Intuitive use – A user-friendly interface with a smartphone feel makes the camera easy to use right from the start.
- Wireless connectivity – Connect with the testo 605i humidity/temperature meter and the testo 770-3 clamp meter for more measurement values and smoother reporting.
- Robust design – IP54 protection rating and drop resistance up to 1.5 meters ensure reliable operation even in demanding environments.
Included in delivery
- testo 862-2 thermal camera
- Soft bag
- Strap
- USB-C cable
- testo Smart App (planned for 2027 via free update)
- IRSoft – professional software for analysis, post-processing, and documentation of thermographic images (free of charge)
| Infrared image output | |
| Field of view | 40° x 30° |
| Focus | Fixed focus |
| Minimum focus distance | 0,25 m |
| Image refresh rate | 25 Hz |
| Infrared resolution | 256 x 192 pixels |
| Thermal sensitivity | <50 mK at +25 °C |
| Spectral range | 8 … 14 µm |
| Visual image output | |
| Visual resolution | 2 MP |
| Minimum focus distance | 0,2 m |
| Measurement | |
| Measuring range | -10 … +550 °C |
| Accuracy | ±2 °C or ±2 % of reading (at an ambient temperature of +21… +25 °C) |
| Emission factor | 0,01 … 1 |
| Measuring function | |
| Analysis function | Hotspot, coldspot, DeltaHeat, Delta T, 5 adjustable measurement points, 3 areas of interest |
| pplication-specific measurement functions | DeltaHeat, moisture mode |
| Humidity mode – manual | Yes |
| Moisture measurement with moisture meter | Automatic transfer from testo 605i (optional) via Bluetooth to testo 862 |
| Electrical mode – manual | Yes |
| Electrical measurement with clamp ammeter | Automatic transfer from testo 770-3 (optional) via Bluetooth to testo 862 |
| Image presentation | |
| Display options | IR image / Visual image / Fusion / Picture-in-picture / humidity mode |
| Video mode: | Non-radiometric video recording in the instrument (AVI) |
| Full-screen mode | Yes |
| Colors | iron, rainbow, rainbow HC, cold-warm, blue-red, gray, inverted gray, sepia, Testo, iron HAT, moisture palette |
| Digital zoom | Yes, maximum zoom: 4,0X |
| Image file format | bmt, jpg |
| Storage capacity | 12 GB available to the user |
| Power supply | |
| Battery type | Integrated rechargeable Li-ion battery |
| Battery time | 3h at +25 °C |
| Charging options | USB-C |
| Charging time | Approximately 170 min (15 min charging of an empty battery equals 25 min operating time) |
| Ambient conditions | |
| Operating temperature | -10 … +50 °C |
| Storage temperature | -20 … +70 °C |
| Humidity | 5 … 95 %RH, non-condensing |
| Protection class | IP54 |
| Drop resistance | 1,5 m |
| Vibration | IEC 60068-2-27 med 30 g |
| Packaging vibration | ISO2247:2000-03 |
| Physical specifications | |
| Weight | 215 g (instrument only) |
| Dimensions | 135 x 88 x 25 mm |
| Tripod mount | 1/4″ UNC |
| Data interface | |
| USB | USB-C |
| WiFi | Communication with testo Smart App; WiFi: IEEE 802.11b/g/n |
| Bluetooth | Peer-to-peer communication for fast connection |
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testo 605i – wireless moisture and temperature sensor
1 350 SKU 0560 2605 02SmartProbes for measuring moisture and temperature
- 0 … 100 %RH
- -20 … +60 °C
- Bluetooth range up to 100 m
-

testo 770-3 – clamp ammeter with power measurement (set)
2 995 SKU 0590 7703 02Current clamp ammeter with power measurement and Bluetooth
- Increased accuracy in the lower current range thanks to improved resolution
- TRMS measurement
- Automatic AC/DC for voltage and large two-line display
IRSoft 5.3 for all Testo thermal imagers
IRSoft enables you to analyze your thermal images in detail. Download the latest version of IRSoft to your PC and run the “Setup.exe” file to install the program. Please also refer to the installation tips below.
Important: To use the Testo 862 thermal imager, IRSoft version 5.3 or later is required.
If an older version of IRSoft is already on your PC, it will be updated to the latest version.
Installation tips
In most Windows versions, files are downloaded to a folder named “Downloads”. Move the downloaded ZIP file to C:/temp or directly to C:/ and extract it. Then right-click the EXE file and select “Run as administrator”. The installation will then start automatically. When everything is finished, a Testo folder should have been created in the Start menu, where you will find the new program icon.
Similar products
testo 860i – wireless thermal imaging camera, including carrying case
testo 860i Thermal Imaging Camera for Mobile Devices, including a handy carrying case.
- Easy and fast determination of Delta T in the thermal image using the application-specific measurement functions DeltaHeat and DeltaCool
- Razor-sharp thermal images thanks to high IR resolution (256 x 192 pixels)
- Everything is easy with the testo Smart app: simple handling and easy documentation via email directly at the measurement site
- Flexible handling through wireless use or one-hand operation, directly connected to a smartphone
- The testo 860i is also available for purchase without a carrying case (item no. 0560 0860)












