20V Vacuum Swichgages

The 20 Series (2 inch/51 mm dial) and the 25 Series (2 1/2 inch/64 mm dial) Swichgage instruments are diaphragm-actuated, vacuum-indicating gauges with built-in electrical switches. These switches are used for tripping alarms and/or shutdown devices. Ranges available are 0-20in HG, 0-30 in HG and 0-30 inches Water Column.