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Data Sheet | Instruction Manual | IRSoft Manual
Testo 860i Smartphone-Operated Wireless Thermal Imager
The ultra-compact Testo 860i wireless thermal imager transforms your modern smartphone or tablet into a professional-grade thermography tool. Specifically optimized for fast, everyday spot checks in HVAC, industrial maintenance, and facility engineering, it features a crystal-clear 256 x 192 pixels infrared resolution. Operating seamlessly through the testo Smart App over high-speed WLAN and Bluetooth, it offers automatic peer-to-peer pairing. The specialized application presets, DeltaHeat and DeltaCool, empower contractors to calculate real-time differential temperature ($\Delta T$) spreads across radiators and cooling loops. Built to withstand demanding jobsites, the rugged housing boasts IP54 protection and structural drop resistance up to 1.5 m.
Industrial Applications
- HVAC & Hydronic Heating Balancing: Instant tracking of structural radiator performance and fluid distribution lines via the pre-programmed DeltaHeat matrix.
- Refrigeration & Air Conditioning Audits: Fast assessment of expansion profile cooling loops and technical refrigeration circuits utilizing the smart DeltaCool app function.
- Mould Risk Prevention & Electrical Inspection: Hybrid monitoring when connected to optional Testo 605i thermohygrometers to dynamically visualize indoor damp sectors and spot overheating circuit elements.
Technical Characteristics
| Infrared Resolution | 256 x 192 temperature measuring points for detailed thermal matrices |
| Thermal Sensitivity (NETD) | 50 mK (0.05 °C) for high-fidelity detection of micro thermal shifts |
| Measuring Temperature Range | Comprehensive range spanning from -20 to +350 °C |
| Measurement Accuracy | ±3 °C or ±3 % of measured value within core environmental limits |
| Field of View (FOV) & Lens | Wide 48° x 36° fixed-focus lens array for rapid site overviews |
| Integrated Smartphone Clip | Heavy-duty adjustable structural slider spanning from 134 mm up to 190 mm width |
| Wireless Network Protocol | High-speed WLAN (IEEE 802.11a/n/ac) and automated Bluetooth peer-to-peer advertising |
| Operating System Requirements | Requires smart mobile platforms running iOS 17+ or Android 14+ |
| Data Storage Options | Direct, limitless data logging path matching the internal storage capacity of the host mobile device |
| Power & Rapid Charging | Built-in Li-ion pack featuring advanced USB-C rapid charge (90 min full cycle) |
| Ruggedized Durability | IP54 dust/splash ingress protection with verified 1.5 m jobsite drop-test endurance |
Package Contents
- Testo 860i professional wireless thermal imaging smart module
- Adjustable smart clamp bracket for rigid smartphone attachment
- USB-C data connection and fast charging interface cable
- Factory-calibrated validation record and multi-language deployment guide