The PXF5ABR2-MV1A1 is a self-tuning 1/8 DIN (48 x 96 mm) compact temperature and process controller with a 50 ms sampling speed. That 50 ms sampling means the controller updates its control output every 50 ms — fast enough for thermal processes with tight deadbands (plastic extrusion, heat-seal bars, packaging ovens) where a slower loop would overshoot or lag.
The 1/8 DIN (48 x 96 mm) cutout is a standard panel-mount footprint — drops into an existing panel punch without adapter plates.