Testo 860i Thermal Imager
256 x 192 resolution, 640 x 480 image size, 50mK sensitivity, wireless connection to a smartphone via Testo Smart App, full temperature data, Delta T analysis.

- By Testo
- FREE Ground Shipping on orders of $1,000 or more
- FREE Lifetime Tech Support
- FREE Accessories Included
Overview
Features
- Wireless thermal imaging via smartphone and the free Testo Smart App
- DeltaHeat, DeltaCool, and humidity mode for fast, application-specific analysis
- Full radiometric data with hot/cold spots, Delta T, and area measurements
- Infrared resolution: 256 x 192 pixels
- Measuring range: -4 to 662 °F
- Field of view / min. focusing distance: 48° x 36° / 1 ft
- Geometric resolution (IFOV): 3.3 mrad
- Thermal sensitivity (NETD): 50 mK
- Image refresh rate: 9 Hz
- Charging interface: USB-C
- Connection: Bluetooth 4.0, WLAN (IEEE 802.11b/g/n)
- Protection class: IP54-rated
Description
The Testo 860i wireless thermal imager delivers precise thermal imaging directly to your smartphone or tablet. It connects seamlessly via Bluetooth and WLAN to the intuitive Testo Smart App, which displays, analyzes, and stores high resolution infrared images (256 x 192 pixels) and measurement data. Designed for field professionals, the 860i features rugged IP54-rated housing and easy one-handed operation, making it ideal for fast, reliable thermal inspections on the go.
It captures full radiometric images and supports functions such as DeltaHeat for identifying supply and return differences in heating systems, DeltaCool for evaluating cooling efficiency in air conditioning and refrigeration systems, and humidity mode for assessing mold risk in buildings.
The Smart App also provides hot and cold spot analysis, Delta T, area measurements, and customizable color display options such as rainbow, sepia, and humidity palettes. The device runs on a rechargeable battery with up to two hours of runtime and charges quickly via USB-C. The Smart App integrates with other Testo tools, such as clamp meters and thermohydrometers, for complete system diagnostics in HVAC, building maintenance, industrial inspections, and facility management.
Testo 860i:
- Testo 860i - Wireless thermal imaging camera for smartphones
- USB-C cable
Testo 860i Kit:
- Testo 860i - Wireless thermal imaging camera for smartphones
- Carrying pouch for safe transport
- USB-C cable
Documents
Spec Sheets
Manuals
Links
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