The gauge is built in into a standard plastic box of the European format from the non-flammable material Norit. The instruments can also be supplied in so called desk variation, built in into the aluminium box with a corresponding cover. The data about the measured pressure are displayed on a 3.5-figure display in any units. The display colour is red or green, the figures height is 13 mm. The instrument rewrites the data on the display after carrying out several measuring and carrying out software corrections ca. 5 times a second. A positive value corresponds with overpressure, a negative one with under pressure. The Control of these functions is made by means of five buttons on the front panel of the instrument but also on a serial communication line (if the instrument is equipped with it). This part of the program is accessible only through a login because of a possibility of unintended pressing of the buttons or an incompetent intervention, see the detailed instructions for use.