Important Notice
This item is made-to-order exclusively for you once your order is placed. As a result, it is not eligible for cancellation or return under our standard policy. Your statutory rights remain unaffected.
The Testo 860i performs spot checks while enabling fast determination of Delta T (differential temperature) analysis. It has a humidity mode function, a thermography function, high infrared resolution, and a long-lasting rechargeable lithium battery.
The advanced measurement functions DeltaHeat and DeltaCool assess the temperature spread between flow and return lines and identify differential temperatures, respectively.
The Testo Smart App provides a clear display, image storage and sharing, and reporting tools. It also integrates with other Testo measuring instruments. Suitable for HVAC systems, buildings, and industrial maintenance.
Infrared Image Output | |
---|---|
Infrared Resolution | 256 x 192 pixels |
Thermal Sensitivity (NETD) | 50 mK |
Field of View (VFOV/HFOV)/ min. Focusing Distance | 48° x 36° / 0.3 m |
Geometric Resolution (IFOV) | 3.3 mrad |
Image Refresh Rate | 9 Hz |
Focus | Fixed |
Spectral Range | 8 to 14 µm |
Visual Image Output | |
Image Size/min. Focusing Distance | 640 x 480 pixels / 0.4 m |
Measurement | |
Measuring Range | -20 to +350 °C |
Accuracy | ±3 °C or ±3 % of m.v. (at ambient temperature of -10... +40 °C and scene temperature of 0... +150 °C or +100... +350 °C) |
Emissivity/Reflected Temperature Adjustment | 0.01 to 1 / manual (via Testo Smart App) |
Measurement Functions (in the Testo Smart App) | |
Analysis Functions | Hot/cold spots, Delta T, up to 10 selectable individual measuring points, area measurement (min./max. on area) |
Application-Specific Measurement Functions | DeltaHeat, DeltaCool, humidity mode |
Humidity Mode - Manual | Yes |
Humidity Measurement with Humidity Measuring Instrument | Automatic transfer of the optional Testo 605i or Testo 625 thermohygrometer readings via Bluetooth to the Testo Smart App |
Electrical Mode - Manual | Input of current, voltage or power |
Electrical Measurement with Clamp Meter | Automatic reading transfer of the optional Testo 770-3 Clamp Meter via Bluetooth to the Testo Smart App |
Image Presentation (in the Testo Smart App) | |
Display Options | IR image, real image (overlay in IRSoft possible) |
Fullscreen Mode | Yes |
Colour Palettes | Iron, rainbow, rainbow HC, cold-hot, blue-red, grey, inverted grey, sepia, Testo, iron HT, humidity palette |
Digital Zoom | Yes |
General App Functions | |
File Format | Share saved images as .bmt (for editing in IRSoft), .jpg, and .csv files with the Testo Smart App |
Image Storage | On a mobile device |
Remote-controlled Operation | Up to 10 m from the mobile device (via WLAN) |
Power Supply | |
Battery Type | Integrated Li-ion rechargeable battery |
Battery Life | 2 hours |
Charging Interface | USB-C |
Charging Time | Approx. 90 min A 15-minute charge of an empty battery equals 30 minutes of operating time |
Ambient Conditions | |
Operating Temperature Range | -10 to +50 °C |
Storage Temperature Range | -20 to +70 °C |
Air Humidity | 5 to 95 %RH, non-condensing |
Housing Protection Class (IEC 60529) | IP54 |
Impact Resistance Test | 1.5 m |
Vibration | IEC 60068-2-6 |
Physical Features | |
Weight | 195 g |
Dimensions | 165 x 45 x 38 mm |
Mobile Device Attachment | Clip span: min. 120 mm, max. 170 mm and device depth up to max. 12 mm |
Tripod Socket | ¼" UNC thread |
Compatibility | |
Testo Smart App | Requires iOS 17 or later/Android 14 or later Requires mobile terminal device with Bluetooth 4.0 |
PC Software Testo IRSoft | Windows 11, Windows 10 |
Data Interface | |
WLAN* | Communication with the Testo Smart App WLAN: IEEE 802.11b/g/n |
Bluetooth* | Peer-to-peer advertising for fast connection set-up |
* An overview of the radio authorisations in the different countries can be found in the download section of the Testo 860i product page in the "Quick Start Guide Testo 860i" document. |