Vacuum Gauge, Bargraph, 1000-1 Micron Complete with Thermocouple. Compact, low cost unit in a rugged metal case with solid state circuitry. The display is easy to read, single point LED bar-graph with a single process set-point. The 4-Pin Varian style gauge tube is threaded with a 1/8” male NPT for use with the AF-0306 adapter. Supplied complete with a gauge tube having a 10 foot cord.