1. Adopted European MOSFET, IGBT solid state power module and advanced inverter technology. 2 It has the function of three-stage time setting represented by heating-heat preservation-cooling. Furthermore. The power for heating and heating preservation is available for independent regulation, which can be effective to some extent control the heating curve and the heating temperature. 3 Fully functional, include over-current ,over voltage, water shortage , lack of phase and other fault state protection and display, which can provide higher reliability and durability. 4 Low voltage output does not present safety hazard. 5 The comprehensive full load design is available for 24-hour continuous operation.