If you wish to test your sensor in real time then you should use an Acu-Test Pack which allows you to connect the sensor to a PC via a USB cable. It will give wind speed and direction readings in real time. It also allows you to change some settings such as heater set point temperature.
A serial emulator program (such as Tera Term* or HyperTerminal*) is another way of testing communication. This allows you to send commands and receive messages serially to and from the sensor.
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