The instrument has very small dimensions. To the illuminated digital display the user can see graphs of the measurements. It has real time clock with date and time indication and some of the models have also compass.
It measures the following parameters (depending on the model): Wind Speed and Direction, Air Temperature – Relative Humidity, Barometric Pressure, Altitude, etc. Some of the models have also internal memory and PC software for the downloading and epresentation of the measurements.