Fuji PXR3 temperature controllers, Fuji Electric's trusted line of process and temperature controllers. The PXR3 is a 1/32 DIN (48mm x 24mm) popular in OEM application. It is compact, easy to use and with a large LED display. In addition to auto-tuning and fuzzy control, Fuji PXR3 temperature controllers now come with self-tuning - an innovation in the control field. Self-tuning automatically re-tunes the controller under certain conditions, without the need to revert to auto-tuning.