This Modbus Wifi Digital FCU Thermostat 4 Pipes 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-08 For 2- or 4-pipe fan coil units 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)