... has timer,clock,memory, leak current detection, water level detection&display(two colour LED) function etc. a. Apply 8 bit microcomputer ... to controller b. The precision of temperature control <=1°C c. The display is the double 7segments LEDs or LED module or LCD ... has timer,clock,memory, leak current detection, water level detection&display(two colour LED) function etc. h. It has leak current ...