Touchscreen Modbus room controllers with capacitive colour touchscreen. Wall mounted for optimal efficiency. Modbus RS485 communication. Built in CO2, temperature, VOC, humidity and occupancy measurement options. Advanced control logic functionality for most room control applications; multi-stage (3 x heating/cooling stages) temperature control. Additional PI control loop. CO2 control. Humidity Control. VOC (Volatile Organic Compound) control. Movement control.  Occupied/Unoccupied/Off control modes. Summer/winter change-over functionality. 6-port valve control. Reset min/max temperature control functionality. Dew point control.