... moisture have been removed from the system. 1.Unique patented thermal conductivity sensor automatically compensates for temperature. 2.Replaceable , cleanable, plug ... handles 450psi positive pressure. 3.Displays 8 different units of vacuum(microns, Torr, Bar, Psi, Kpa, Kg/cm2, mmHg, inHg) 4 ... .Displays down to the equivalent of 10 microns of vacuum 5.12’ coiled sensor cord stretches to 24’ for easy ...