You can view the measurement data and change the settings of AQT400 through the RS-232 serial interface. The RS-232 interface is used mainly for the maintenance connection.
Use the service cable kit to connect your computer to AQT400.
You can connect to AQT400 with the following options:
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Vaisala recommends using a graphical user interface tool: AQ Tool.
See Vaisala Air Quality Transmitter AQT400 Series User Guide.
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For more versatile management and troubleshooting options, use a standard terminal program with a command line interface (CLI).