Busch Vacuum Pumps and Systems VacTest vacuum measurement equipment has a measurement range that covers all vacuum levels. VacTest digital transmitters come with a range of options as standard and a smart microcontroller architecture that allows an optimal sensor control, as well as a variety setting possibilities. Used for centralized monitoring and control systems, VacTest analog transmitters feature a compact, functional design. Designed for service or vacuum process quality assurance, VacTest mobile, battery-operated gauges offer functions, such as a USB interface for exporting and displaying data or as a data logger. They also can be sealed in vacuum packaging to measure the pressure within it.