Features *  Tank is using seamless stainless steel and outside body is powder painting *  Screen-touth panel, micro-computerPID digital display *  Overheat protector *  The water bath with circulator using electric heat tube to unify temperature inside *  Add exterior circulator as require *  The sensor is PT-100Q *  Gable cover (AC-100) sold separately for your option. *  Heater of stainless steel *  External Circulating Pump is available *  Heating circulator sold separately for your option