It can control indoor&outdoor fan speed,electric heater,compressor,valve, sweep etc. a. Low cost b. ... remote control d. The precision of temperature control <=1°C e. The display is the LEDs or the double ... VFD f. It can control indoor&outdoor fan speed,electric heater,compressor,valve, sweep etc. g. The power line ... ,over voltage,over pressure protection etc. Controller for floor-stand type A ...