Vacuum gauges are used to measure vacuum levels during the evacuation of air conditioning, heat pump and refrigeration systems, helping engineers check that air and moisture have been removed before a system is charged or returned to service. Accurate vacuum measurement is an important part of installation, commissioning, maintenance and fault diagnosis, particularly where system performance and reliability depend on a clean, dry circuit. This category features a selection of digital vacuum gauges, smart vacuum probes, wireless vacuum gauges and related accessories for professional HVAC and refrigeration work. Products in this range are suitable for monitoring evacuation, checking vacuum stability and supporting reliable servicing, with options available from leading manufacturers such as Testo, Sauermann, Kane and more.