... Characteristicsa)Digital LCD display,EL Backlight b)Adjustable 4-speed or automatic fan speed control,High,Medium,Low and ... Remote control is optionalTechnical Dataa)Power Supply:24VAC,220VAC b)Ambient Temperature:-10~60°C c)Relative Humidity:≤ ... Building System.ApplicableApplication to HAVC,Heating System,Fire Place,Fan Coil Unit,Motorized Valve,Actuator and Intelligent Building etc.. Characteristicsa) ...