... . F2000IAQ-CO2 can be as a programmablelogical controller to control CO2 level, temperature or humidity,and also as ... systems. Itprovides a RS485 communication interface with an independent address to PC orother control systems. Hotel, exhibition hall, hospital, shop, ... CO2 sensorMicroprocessor control, quick response, high precision Provide up to three 0~10VDC outputs or relay dry contactoutputs, or ...