SQ Unit equalises any pressure fluctuations in the gas line before the place of use in various buildings and departments in the hospital. When a higher pressure is supplied from the supply source to compensate for example small line sizes, reducing the SQ Unit to normal operating pressure closer to the place of use. The integrated monitoring module has a digital display and monitor the gas pressure in various supply system. The monitoring system in the SQ Unit warn of errors with the help of visual and acoustic alarms. With simple clicks, the user can easily check all values through the menus in the monitor module program. The program settings can be changed only by authorized personnel and is protected by a PIN code.