Number of the sensor's measurement points, shown to the catalog's scale.
The largest sensor in the database has 327 680 points.
Published by the manufacturer
Specifications
Values come from manufacturer documentation unless otherwise
noted in the sources at the bottom of the page. This device has not been physically tested.
Identity
Brand
testo
Model
871s
Series
870 Series
Release year
not published by the manufacturer
Commercial status
current
EAN code
not published by the manufacturer
Manufacturer reference
0560 8716
Segment
S4
Sensor and image
Native resolution, width (px)
240
Native resolution, height (px)
180
Native detector pixels
43200
Displayed resolution, width (px)
480
Displayed resolution, height (px)
360
Interpolation ratio
4.0
Interpolation method
optical micro-scanning
Detector type
uncooled microbolometer
Detector material
not published by the manufacturer
Pixel pitch (µm)
not published by the manufacturer
Spectral band, min (µm)
7.5
Spectral band, max (µm)
14
NETD (mK)
80
NETD measurement conditions
not published by the manufacturer
Frame rate (Hz)
9
Optics
Horizontal field of view (°)
35
Vertical field of view (°)
26
Advertised IFOV (mrad)
2.6
Recalculated IFOV (mrad)
2.55
Minimum focus distance (m)
not published by the manufacturer
Focus
fixed
Interchangeable lenses
no
Digital zoom (×)
not published by the manufacturer
Macro lens
Availability
no
Reference
not applicable
Working distance (mm)
not applicable
Spot size (µm)
not applicable
Smallest measurable area (µm)
not applicable
Accuracy with macro (°C)
not applicable
Range max with macro (°C)
not applicable
Measurement
Range min (°C)
-30
Range max (°C)
650
Absolute accuracy (°C)
2
Relative accuracy (%)
2
Emissivity setting
continuous
Reflected temperature correction
yes
Measurement modes
4
Simultaneous cursors
not published by the manufacturer
Full radiometry
yes
Visible channel
Visible camera (MP)
5
Image fusion
not published by the manufacturer
LED light
not published by the manufacturer
Laser pointer
not published by the manufacturer
Ergonomics and ruggedness
Screen (inches)
3.5
Screen resolution
not published by the manufacturer
Touchscreen
no
Weight (g)
not published by the manufacturer
Dimensions (mm)
not published by the manufacturer
IP rating
IP54
Drop resistance (m)
not published by the manufacturer
Operating temperature, min (°C)
not published by the manufacturer
Operating temperature, max (°C)
not published by the manufacturer
Power
Power type
system battery
Battery system
Battery testo 0554 8721 (shared with the 865s, 868s, 871s et 872s)
Battery life (h)
not published by the manufacturer
Charging connector
not published by the manufacturer
Storage and connectivity
Internal memory (GB)
not published by the manufacturer
Memory card
not published by the manufacturer
Wi-Fi
yes
Bluetooth
yes
Wired interface
USB
File formats
not published by the manufacturer
Software
PC software
testo IRSoft
Free PC software
yes
Mobile app
testo Thermography App
Report generation
yes
Cloud service
not published by the manufacturer
Compliance
Calibration certificate provided
not published by the manufacturer
Declared standards
not published by the manufacturer
Warranty (months)
not published by the manufacturer
Support in France
yes
Observations
The missing link between the 868s and the 872s. A 240 × 180 sensor, i.e. 43,200 measurement points, brought up to 480 × 360 via SuperResolution.
An advertised IFOV of 2.6 mrad, consistent with recalculating from the 35° field of view and the sensor's 240 columns.
Three ε-Marker stickers included as standard. These are the reference stickers that let the device determine emissivity and reflected temperature on its own.
IFOV warning, ScaleAssist, and mold-risk detection, like the rest of the range.
A calibration protocol included in the case.
Neither weight, nor dimensions, nor pixel pitch, nor battery life are published.