McE pressure gauges & flow meter measure absolute & differential and have been proven millions of times over. For the optimal solution for the widest range of applications, there is a multiple choice of measuring systems. . The pressure gauges cover scale ranges from 0 to 21 bar and flow meter upto 1000 m3/hr indication accuracies of up to 0.1 %. For the various requirements in industrial and process instrumentation there are pressure elements from copper alloys, stainless steel or special materials.