Heating Time R. T. 98C 60 min. Controller OmRON E5AX microcomputer controller Resolution: 0.1 C Resolution +- 0.3C Internal External Material SUS 304 stainless steel by compley assembled structure Insulating Material PU, Fire proof static foam Heater Insulation temperature heater Security System Earth leakage breaker 2nd stage over-heat protector Water shortage protector Error indicator