Product Description  Make sure you get the testo 875-1i thermal imager with built-in digital camera for professional industrial and building thermography 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.                 Infrared image output               Focus     manual           Infrared resolution     160 x 120 pixels           Image refresh rate     33 Hz           SuperResolution (IFOV)     2.1 mrad (Standard lens)           SuperResolution (Pixel)     320 x 240 pixels           Geometric resolution (IFOV)     3.3 mrad (Standard lens)           Minimum focus distance     0.1 m (Standard lens)           Field of view     32° x 23°           Thermal sensitivity     & 706; 50 mK at +30 °C                            Image output visual               Minimum focus distance     0.4 m           Image size     640 x 480 pixels                            Image presentation               Display option     IR 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)           Display type     3.5" LCD with 320 x 240 pixels           Video output     USB 2.