The Fuji Electric PXF4APS2-MV1A1 is a self-tuning 1/16 DIN (48 x 48mm) compact temperature and process controller with a 50ms sampling speed. Lifecycle stage is current.
What the 50ms sampling means for your loop
50ms sampling updates the PID output every 50 milliseconds.
The 1/16 DIN (48 x 48mm) cutout is the standard panel-mount size for temperature controllers.