The Fuji Electric PXF4AEE2-JBVA1 is a self-tuning 1/16 DIN (48 x 48mm) compact temperature and process controller with a 50ms sampling speed. That 50ms loop rate matters when you're controlling a fast-responding process like a small oven or a heated roller — the controller catches temperature overshoot before it runs past the setpoint. The self-tuning algorithm handles PID gain scheduling during startup, so you don't have to manually calculate tuning constants for each zone.
Panel fit
The 1/16 DIN (48 x 48mm) panel cutout is the standard size for this controller class — it drops into the same hole as any other 1/16 DIN instrument. The compact depth leaves room behind the panel for wiring ducts and terminal blocks. No special DIN-rail adapter needed; it's a panel-mount form factor with the clamping brackets included.