This Modbus RTU thermostat  is designed to control the fans, valves, dampers or electric heater or direct expansion (DX) duct air conditioner in heating/cooling/ventilation applications in industrial, commercial or residential environment.    ltem No.:FT-70 · Valve control via 2-point(on/off output) or 0-10 V output · Supports 3-speed fans and 0-10V fan speed  · Non-Volatile memory to keep program settings and setpoints during a power outage· BACnet MS/TC network controlable  · Modbus/RTU network controlable (Optional) · 7 days 4 perioods programmable (Optional) · Child Lock (Optional) · External Sensor (Optional) · Keycard (Optional) · WIFl Remote Control (Optional)