Manual , On/Off/, PID with Fuzzy Logic Control Controller Accept input RTDs/ Thermocouples Single or Three Phase Mains Operated Single or Three phase Heater Control Output Control Device Contactor or Solid state Relay or Tyristor Capacity available 25/40/70/100/120 A Fabricated wit Stainless Steel or MS with Powder Coated Power on , Heater on , Fan on switches Temperature Range 50 to 1200 º C.