This modulating FCU 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-08 Application: For 2-pipe or 4-pipe fan coil units (FCU) Control Signal: Valve control via 2-point (on/off) or 0...10 V modulating output Fan Compatibility: Supports 3-speed fans or high-efficiency fans with EC motor Memory Function: Non-volatile memory to retain program settings during power outages Smart Protocol: Modbus/RTU management control for BMS integration (Optional) Programming: 7 days 4 periods programmable scheduling (Optional) Safety Feature: Child Lock function to prevent unauthorized settings (Optional) Sensor Input: External NTC sensor for remote temperature sensing (Optional) Energy Saving: Keycard input for hotel energy management (Optional) Remote Access: WiFi Remote Control via Smartphone App (Optional)