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General technical data
Protection class: IP54
System requirements: Requires iOS 17 or newer; requires Android 14 or newer; requires mobile end device with Bluetooth 4.0
Infrared image output
Field of view:48° x 36°
Focus: Fixed focus
Minimum focus distance : 0.3 m
Image refresh rate: 9 Hz
Infrared resolution: 256 x 192 pixels
Thermal sensitivity: 50 mk
Spectral range: 8 to 14 µm
Image output visual
Minimum focus distance : 0.4 m
Image size: 640 x 480 pixels
Image presentation
Colours: iron, rainbow, rainbow HC, cold-hot, blue-red, grey, inverted grey, sepia, Testo, iron HAT, humidity palette
Digital zoom: yes
Display option : IR image / real image
Measurement
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: 0.01 to 1
Measuring range: -20 to +350 °C
Reflected temperature: manual; (via testo Smart App)
Imager equipment
Full screen mode: yes
WLAN Connectivity :Communication with the testo Smart App; WIFI: IEEE 802.11b/g/n*
Bluetooth :Peer-to-peer advertising for fast connection set-up*
Remote-controlled operation :Up to 10 m from the mobile device (via WLAN)
* 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.
Imager storage
File format image: .bmt; .jpg; .csv
Storage device: On a mobile device
Power supply
Battery type: Integrated Li-ion rechargeable battery
Charging options: USB-C
Charging time : Approx. 90 min (15-min charge of an empty battery equals 30 min of operating time)
Ambient Condition
Air humidity :5 to 95 %RH, non-condensing
Vibration : IEC 60068-2-6
Impact resistance test: 1.5 m
Storage temperature: -20 to +70 °C
Operating temperature : -10 to +50 °C
Physical specification
Tripod mounting: 1/4" - 20UNC
Mobile device attachment: Clip span: min. 120 mm, max. 170 mm and device depth up to max. 12 mm
Weight: 195 g
Dimensions: 165 x 45 x 38 mm
PC software
System requirements: Windows® 10; Windows® 11
