This Modulating 0-10V Modbus WIFI FCU thermostat is desigend for heating and cooling by means of fan coil units in commercial and residential buildings.  Item No.: FT-CS03 For 2- or 4-pipe fan coil units Valve control via 2-point or 0…10 V output Supports 3-speed fans or fans with EC motor 7 days 4 perioods programmable  Support Modbus/RTU management control  Non-Volatile memory to keep program settings and setpoints during a power outage  Child Lock (Optional) External Sensor  (Optional)  Occupancy sensor  (Optional)  WIFI Remote Control (Optional)