This toch EC fan coil thermostat is designed to control the fans, valves, dampers or electric heater in fan coil units and heating applications in industrial, commercial or residential environment. Item No.:FT-66     Valve control via 2-point(on/off output) or 0…10 V output Supports 3-speed fans or fans with EC motor  Non-Volatile memory to keep program settings and setpoints during a power outage  Modbus/RTU management control (Optional) 7 days 4 perioods programmable (Optional) Child Lock (Optional) External Sensor  (Optional)  Keycard  (Optional)  WIFI Remote Control (Optional)