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The Digivac Model 100 Hast Batt is our best seller in the Cryogenic industry, and the industry's best value for a rugged vacuum gauge for measuring hard vacuum in a portable form factor. This unit measures vacuum in microns and uses the rugged Hastings DV-6M thermocouple gauge tube.
This gauge measures from 1 micron (1x10^-3 Torr) up to 1999 Microns. This gauge will display integer micron readings from 200 microns to 1999 microns, and will read tenths of microns when the indicated vacuum is less than 199.9 microns.