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testo 875-1i - Thermal Imager with digital camera

Product Description

You can carry out completely non-destructive tests on materials and components in industrial thermography with the testo 875-1i. This allows you to reveal problems in industrial maintenance and production monitoring before a malfunction occurs or fire risks develop. And for good measure, you can create a real image in parallel to the thermal image thanks to the built-in digital camera. This makes documentation and assignment easier for you.

You can detect possible structural defects with the testo 875-1i thermal imager in building thermography. With the excellent thermal sensitivity of < 50 mK, you can quickly and efficiently track down energy losses and so help your customers to save expensive heating costs and plan refurbishments.

In the “Applications” tab, you can find out more about the thermal imager's fields of application.

The testo 875-1i Infrared Imaging Camera’s technical features
The testo 875-1i thermal imager is characterised by its intuitive operation, excellent thermal sensitivity and built-in digital camera. Read all the important information here:

-  Built-in digital camera: Recording real images in parallel to each thermal image makes documentation and assignment easier

-  Resolution and image quality: Detector size 160 × 120 pixels = 19,200 temperature measuring points.

-  *SuperResolution Technology (optional) enables you to take image quality right up to the next level of 320 × 240 pixels in next to no time. Four times as many readings and a geometric resolution that has been improved by a factor of 1.6 mean you get even more detail and even greater reliability with thermographic measurements

-  Thermal sensitivity < 50 mK: Thanks to a temperature resolution of < 50 mK, even the smallest temperature differences can be seen

-  High-quality 32° × 23° lens: The lens with its manual focusing enables a wide field of view and an ideal overview of the temperature distribution, along with precise focusing on the object being measured

-  Automatic hot/cold spot detection: Critical temperature conditions are directly displayed during thermography

-  Solar mode: The solar radiation value can be input into the thermal imager and stored with each thermal image

-  Pro software for image evaluation on the PC included. You can also choose to save the thermal images as JPEGs. Find out more about the software Link to the “testo IRSoft” pdf

-  Measuring range: -30 to +350 °C


Delivery Scope

  • Robust case
  • Pro software IRSoft (free download)
  • Soft case
  • Carrying strap for the thermal imager
  • SD memory card
  • USB cable for data transfer to PC
  • Lens cleaning cloth
  • Mains unit
  • Li-ion battery
  • Adapter for tripod mounting

Technical Data

Ambient Condition
Storage temperature -30 °C; 60 °C
Operating temperature-15 °C; 40 °C
Air humidity 20 to 80 %RH non-condensing
Housing protection class IP54
Vibration 2G

Image output visual
Image size 640 x 480 pixels
Minimum focus distance 0.4 m
Image presentation
Display type 3.5" LCD with 320 x 240 pixels
Display optionI R image only; real image only; IR image / real image
Number of colours 10
Colours 10 (iron, rainbow, rainbow HC, cold-hot, blue-red, grey, inverted grey, sepia, Testo, iron HT)
Video output USB 2.0
Imager equipment
Power-LED Not included
Video streaming Included
Standard lens 32° x 23°
Digital camera Included
Laser Included
Imager storage
File format image .bmt; export option in .bmp; .jpg; .png; .csv; .xls
Storage device SD card 2GB (approx. 2.000 images)
Infrared image output
Infrared resolution 160 x 120 pixels
Thermal sensitivity ˂ 50 mK at +30 °C
Field of view 32° x 23°
Minimum focus distance 0.1 m (Standard lens)
Geometric resolution (IFOV)
 3.3 mrad (Standard lens)
SuperResolution (Pixel) 320 x 240 pixels
SuperResolution (IFOV) 2.1 mrad (Standard lens)
Image refresh rate 33 Hz
Focus manual
Measuring range -30 to +100°C; 0 to +350 °C (switchable)
Accuracy ±2 °C, ±2 % of m.v. (±3 °C of m.v. at -30 to -22 °C)
Reflected temperature manual
Measuring function
Surface moisture distribution Not included
Humidity measurement Not included
Solar mode – manual Included
Analysis function Up to 2 measurement points, hot/cold spot recognition
PC software
System requirements Windows XP (Service Pack 3); Windows Vista; Windows 7 (Service Pack 1); Windows 8; Interface: USB 2.0
Physical specification
Dimensions 152 x 108 x 262
weight (without package) 900 g
Tripod mounting M6
Product-/housing material ABS
Power supply
Battery type Fast-charging, Li-ion battery can be changed on-site
Operating time 4.0 h
Charging options In instrument / charger (optional)
Mains operation yes
Termovisores garantia
EU-/EG-guidelines 2004/108/EG