The main function s color lcd display, automatic fault alarm function s digital intelligent automatic control of microcomputer, liquid crystal display, time switch machine s automatic control more than 30% to below 95% humidity s automatic display 30% above to 95% below the current humidity s humidity setting accurate to 1%, and control s low temperature automatic defrosting system, automatic detection fault s external drainage pipe, can be continuous drainage s environment humidity liquid crystal display function s regular shutdown function containing s caster, mobile freely Carton packing