Testo 860i Thermal Imager

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.