The Fuji Electric PXF5ACC2-FBCA1 is a self-tuning 1/8 DIN (48 x 96mm) compact temperature and process controller with a 50ms sampling speed. The self-tuning algorithm adapts PID coefficients on the fly, so you don't need to babysit the autotune cycle on startup.
The 1/8 DIN form factor (48 x 96mm) slides into a standard panel cutout. Panel depth is tight — verify clearance behind the door for the terminal block and any optional communication cards. The 50ms sampling speed is the internal ADC rate; the output update depends on the control algorithm and output type (relay, SSR drive, analog). If you're driving a solid-state relay, make sure the SSR's switching frequency doesn't exceed the controller's output cycle time.