The Optris PI 640i infrared camera is designed for applications that require measurement of the finest thermal details. Through complimentary software it displays radiometric measurements in real-time with 640 x 480 pixel resolution​ at 32Hz or in subframe-mode with 640 x 120 pixel resolution​ at 125Hz for time sensitive applications. It's small size is suitable for use in confined spaces.

The Optris PI Connect Software offers extensive analysis of measurement data both on and off line. It can be customized to suit the demands of even the most unique applications. Features include automatic process and quality control, video recording, snap shot, and remote control of the camera. The PI connect software is necessary to interpret measurement results and is compatible with all netbooks, notebooks, and computer systems using Windows 7, 8, and 10.