Bronkhorst High-Tech has designed a series of mass flow meters, offering a modern, economical, digital alternative to conventional VA meters (variable area meters) also known as purge meters. The Mass-View flow meter series incorporates a digital bar graph of actual gas flow, which is clearly visible from all angles, as well as indicating flow units, gas type and totalised figures. Also available with an optional in-built needle valve for flow control duties, it is designed to mimic the straightforward features and vertical format of the VA meter, but with the considerable added benefits of an electronic output signal, high measuring accuracy, virtual independence from gas temperature and pressure variations, freedom from parallax error and inherently safe construction, with no fragile glass components in the flow path.