It can control indoor&outdoor fan speed,electric heater,compressor,valve, ... 4 bit microcomputer & LCD to remote control d. The precision of temperature control <=1°C e. The display is the ... LEDs or LCD(backlight) or VFD f. It can control indoor&outdoor fan speed,electric heater,compressor,valve, sweep ... ,defrosting,overload,over voltage,over pressure protection etc. Controller for floor-stand type A.C.