PXH9D201-AVR00 1/4 DIN Process & Temp Controller, Active

It's used in panel-mounted temperature and process control applications—think plastic injection, packaging seals, or furnace zones—where rapid, stable response matters. For a temperature controller, the signal from the sensor is everything; this unit's rated speed helps the PID loop keep up without hunting. In the panel, twist and shield your sensor leads, ground the shield at the controller end, and you'll avoid chasing a phantom drift later.