Data sheet
testo 875i

Thermal imager
testo 875i – versatile
professional-level thermography

Infrared resolution 160 x 120 pixels
testo SuperResolution technology to 320 x 240 pixels°C

Thermal sensitivity < 50 mK
Measurement mode for detecting mould-risk areas%RH

Built-in digital camera with power LEDs
Exchangeable lenses
High temperature measurement up to 550 °C

The testo 875i thermal imager detects anomalies andbe exposed over a large area, with the thermal imager

weak spots in materials and components quickly andtesto 875i, a single glance is enough. testo SuperResolution

reliably. Thanks to an imaging process, energy losses

technology also increases the resolution of the testo 875i

and cold bridges as well as damage or overheating infrom 160 x 120 pixels in the Software testo IRSoft toindustrial systems are detected without contact. Whereas

320 x 240 pixels. That‘s four times as many readings,

with other methods, cable or pipeline systems must

enabling you to spot even the smallest irregularities.

www.testo.com

testo 875i

Ordering data

testo 875-1i

testo 875-2i set

Thermal imager testo 875-1i with integrated testo
SuperResolution and digital camera, in a robustcase, including pro software (free download),
soft case, carrying strap, SD card, USB cable,lens cleaning cloth, mains unit, rechargeable
Li-ion battery and tripod adapter

Thermal imager testo 875-2i
set with integrated testo
SuperResolution and digitalcamera, in a robust case,including pro software(free download), soft case,carrying strap, SD card,
USB cable, lens cleaning
cloth, mains unit,
rechargeable Li-ion battery,tripod adapter, headset,
9° x 7° telephoto lens, lensprotector, spare rechargeable
battery and fast battery
chargerPart no. 0563 0875 V1

testo 875-2i
Thermal imager testo 875-2i with integrated testo
SuperResolution and digital camera, in a robustcase including pro software (free download),
soft case, carrying strap, SD card, USB cable,lens cleaning cloth, mains unit, rechargeable
Li-ion battery, tripod adapter and headset

Part no. 0563 0875 V3

Part no. 0563 0875 V2

Accessories

Code1)(Firstequipment
testo 875i)

Part no.
(Retrofit)

SuperResolution.
Four times more measurement values for even more detailed analysis of the thermal images

includedin delivery

0554 7806

Fast battery charger.
Desktop charging station for two rechargeable batteries for the optimization of charging time

E10554 8801

Additional battery.
Additional lithium ion rechargeable battery for extending the operating timeD10554 8802

Lens protection glass.
Special Germanium protective glass for optimum protection of the lens from dust and scratching

C10554 8805

Retrofit telephoto lens(for testo 875-2 only); please contact our customer service

A12)High temperature measurement up to 550 °C(testo 875-2i only )G12)Humidity measurement with wireless humidity probe*(testo 875-2i only)B12) 3)Emission adhesive tape. Adhesive tape, e.g. for reflective surfaces (roll, L.: 10 m, W.: 25 mm),
ε = 0.95, temperature resistant to +250 °C

0554 0051

PC software testo IRSoft for data analysis and reporting

0501 8809

ISO calibration certificates;
Calibration points at 0 °C, +25 °C, +50 °C

0520 0489

ISO calibration certificates;
Calibration points at 0 °C, +100 °C, +200 °C

0520 0490

ISO calibration certificates;
Freely selectable calibration points in the range -18 to +250 °C

0520 0495* Wireless humidity probes only in the EU, Norway, Switzerland, USA,Canada, Colombia, Turkey, Brazil, Chile, Mexico, New Zealand, Indonesia

When ordering as initial equipment, you receive the accessories directlyin the case. Example: testo 875-1i incl. lens protection glass and sparebattery: Order no. 0563 0875 V1 C1 D1
2) Please contact our customer service
3) Plus installation1)

testo 875i

Technical data
testo 875-1i

testo 875-2i

testo 875-1i

Infrared image output
Infrared resolution

160 x 120 pixels

Digital camera

Thermal sensitivity (NETD)< 50 mK at +30 °C

Power LEDs

32° x 23° / 0.1 m(Standard lens)

32° x 23° / 0.1 m(Tele: 9° x 7° / 0.5 m)

Geometric resolution (IFOV)

3.3 mrad(Standard lens)

3.3 mrad(Tele: 1.0 mrad)

Laser (laser classification
635 nm, Class 2)***

SuperResolution(pixel / IFOV)

320 x 240 pixels /2.1 mrad(Standard lens)

320 x 240 pixels /2.1 mrad(Tele: 0.6 mrad)

Voice recording

Image refresh rate

33 Hz*Focus

manualSpectral range

Exchangeable lenses - optional

32° x 23°–9° x 7°–

wired headset

Video streaming (viaUSB)
Image storage
File format.bmt; export option in .bmp, .jpg, .png,.csv, .xls

Storage device

SD card 2GB (approx. 2.000 images)

7.5 to 14 µm

Image output visual
640 x 480 pixels / 0.4 m

Power supply
Battery type

Image presentation

Fast-charging, Li-ion battery can bechanged on-site

Image display

3.5“ LCD with 320 x 240 pixels

Operating time

4 hours

Display options

IR image only / real image only/IR and real image

Charging options

In instrument/in charging station (optional)

Video output

USB 2.0

Mains operationyesColour palettes

10 (iron, rainbow, rainbow HC, cold-hot,blue-red, grey, inverted grey, sepia, Testo,
iron HT)

Ambient conditions

Measurement
Measuring range
AccuracyHigh temperature
measurement – optional±2 °C, ±2 % of measurement value(larger value applies)(±3 °C of m.v. at -30 to -22 °C)–-15 to +40 °C

Storage temperature range-30 to +60 °C+350 to +550 °C

0.01 to 1 /manualIP54

Vibration (IEC 60068-2-6)

2G

WeightApprox. 900 g

Dimensions (L x W x H)
in mm

152 x 108 x 262 mm

Tripod mounting

M6

HousingABS

PC software

Measuring functions
Display of surface moisture
distribution (using manualinput)–

Humidity measurementwith radio humidity probe(automatic measurement
value transfer in real time)**–

System requirements

Windows XP (Service Pack 3), Windows
Vista, Windows 7 (Service Pack 1),
Windows 8, interface USB 2.0

Standards, tests()

EU Directive

Solar mode
Analysis function

20 to 80 % RH non-condensing

Housing protection class(IEC 60529)

Physical specifications±3 % of m.v.
at +350 to +550 °C

Emissivity / reflected
temperature

Operating temperature range

Air humidity-30 to +100°C /0 to +350 °C (switchable)

Accuracy***–Standard lensField of view/min. focus
distance

Image size / min. focus
distance

testo 875-2i

Imager equipment

up to 2
measurement
points,
Hot/Cold Spot
Recognition

up to 2
measurement
points,
Hot/Cold Spot
Recognition,Isotherms, Area
measurement (Min-/Max on Area)

inside the EU, outside 9 Hz
Wireless humidity probes only in the EU, Norway, Switzerland, USA, Canada,
Colombia, Turkey, Brazil, Chile, Mexico, New Zealand, Indonesia*** excepting USA, China and Japan

included in delivery() optional–not available

2004 / 108 / ECtesto 875i

Overview of variants

testo 875-1i

Infrared resolution

testo 875-2i

testo 875-2i
Set

160 x 120 pixels

Thermal sensitivity (NETD)< 50 mK

Measuring range-30 to +350 °C

Image refresh rate

33 Hz*

0981 8814/msp/I/08.2020

Features

Lens 32° x 23°
Exchangeable telephoto lens 9° x 7°

–()

–()

()

()

()

SuperResolution
High temperature measurement up to 550 °C
Integrated digital camera
Integrated power LEDs–

Voice recording using the headset–

Laser pointer**–

Humidity measurement with wirelesshumidity probe*** (automatic measurement
value transfer in real time)
Isotherm display in instrument–

Min/Max on Area calculation––(Auto Hot/Cold Spot Recognition

included in delivery) optional–
not available

Solar mode
Lens protection glass()()

Additional battery()()

Fast battery charger

()

()

*
inside the EU, outside 9 Hz** excepting USA, China and Japan*** Wireless humidity probes onlyin the EU, Norway, Switzerland,USA, Canada, Colombia, Turkey,
Brazil, Chile, Mexico, New Zealand,Indonesia

www.testo.com

Subject to change without notice.

Display of surface moisture distribution (bymanual input)