ISG is a mechanical vacuum switch for applications where an electronic switch is unsuitable, or when it is desirable to trigger an electrical device when the set point is reached.  ISG offers excellent repeatability and adjustable hysteresis.  The circuit can be wired normally open or closed, wiht either AC or DC voltage for a range of inductive or non-inductive loads.  Choose bronze/brass or 316 stainless steel wetted parts to monitor vacuum for a range of gases and liquids.  CE compliant options, with IP40 or IP44 enclosure rating..Model with indicator light also available.