Editorial detector visualization; the stated native-resolution figure is authoritative.
Published by the manufacturer
Specifications
Values come from manufacturer documentation. This device has not been physically tested.
Identity
Brand
testo
Model
860i
Series
860i
Release year
not published by the manufacturer
Commercial status
current
GTIN / EAN
not published by the manufacturer
Manufacturer part number
0560 0860
Segment
S1
Sensor and image
Native resolution, width (px)
256
Native resolution, height (px)
192
Native detector pixels
49152
Output resolution, width (px)
not applicable
Output resolution, height (px)
not applicable
Upscaling method
none
Detector type
uncooled microbolometer
Detector material
not published by the manufacturer
Pixel pitch (µm)
not published by the manufacturer
Spectral range, minimum (µm)
8
Spectral range, maximum (µm)
14
NETD (mK)
50
NETD measurement conditions
50 mK (conditions not published)
Frame rate (Hz)
9
Optics
Horizontal field of view (°)
48
Vertical field of view (°)
36
Published IFOV (mrad)
3.3
Recalculated IFOV (mrad)
3.27
Minimum focus distance (m)
0.3
Focus
fixed
Interchangeable lenses
no
Digital zoom (×)
not published by the manufacturer
Macro capability
Availability
no
Reference
not applicable
Working distance (mm)
not applicable
Spot size (µm)
not applicable
Smallest measurable area (µm)
not applicable
Macro accuracy (°C)
not applicable
Maximum macro range (°C)
not applicable
Measurement
Minimum range (°C)
-20
Maximum range (°C)
350
Absolute accuracy (°C)
3
Relative accuracy (%)
3
Emissivity control
continuously adjustable
Reflected-temperature correction
yes
Measurement modes
not published by the manufacturer
Simultaneous cursors
10
Full radiometry
not published by the manufacturer
Visible channel
Visible camera (MP)
0.3
Image fusion
side by side
LED light
no
Laser pointer or rangefinder
no
Ergonomics and ruggedness
Display (inches)
not applicable
Display resolution
not applicable
Touchscreen
not applicable
Weight (g)
195
Dimensions (mm)
not published by the manufacturer
IP rating
IP54
Drop resistance (m)
1.5
Minimum operating temperature (°C)
-10
Maximum operating temperature (°C)
50
Power
Power type
integrated battery
Battery system
not applicable
Runtime (h)
not published by the manufacturer
Charging connector
USB-C
Storage and connectivity
Internal memory (GB)
not applicable
Memory card
not applicable
Wi-Fi
no
Bluetooth
yes
Wired interface
USB-C
File formats
not published by the manufacturer
Software
Desktop software
testo IRSoft
Free desktop software
yes
Mobile app
testo Smart App
Report generation
yes
Cloud service
not published by the manufacturer
Compliance
Calibration certificate supplied
not published by the manufacturer
Declared standards
IEC 60068-2-6
Warranty (months)
not published by the manufacturer
Local service support
yes
Notes
WIRELESS SMARTPHONE-CONTROLLED CAMERA: the 860i has its own battery and communicates with the testo Smart app over Bluetooth. The phone acts as the display and interface, while the sensor remains a separate device.
DeltaHeat and DeltaCool provide quick temperature-difference workflows for heating, air-conditioning and maintenance.
The published 640 × 480 visible-image size must not be confused with the 256 × 192 native thermal detector resolution.