CCB Monitor is installed on the ward for continued monitoring and easily accessible, quick shutdown of the medical gases to a limited part of the central gas supply system at the example of an emergency. CCB Monitor alerts by means of optical and acoustic alarm for high and low pressure and backup gas can be switched on at the break. CCB Monitor also has a built-in function that monitors the operating pressure of oxygen so that it is always higher than the operating pressure of nitrous oxide. This prevents the nitrous flows into the piping of oxygen via the connected equipment. Could a disruption of oxygen occur off the supply of medical nitrous oxide completely.