The Fuji Electric PXF5ACE2-MBTA1 is a self-tuning 1/8 DIN (48 x 96 mm) compact temperature and process controller with a 50 ms sampling speed. The self-tuning algorithm adjusts PID parameters on startup, so you don't need to manually calculate gains for most resistive or IR heating loads.
The 1/8 DIN cutout (48 x 96 mm) is a standard panel-mount footprint, so it drops into existing temperature controller slots without rework. The compact depth keeps clearance behind the panel for wiring and optional communications modules.