TPI 605 Single Input Digital Vacuum Gauge, 5 Digit LCD, +/-10 percent Accuracy, 1 micron Resolution, 12000 to 15 micron Range Measure vacuum from 25 to 0 microns Reads vacuum in seven international units of measure (Microns, psi, InHg, mBar, Pascals, Torr, and mTorr) Display updates every 0.5 seconds Auto power off after 10 minutes when vacuum above 12,000 microns (12 Torr) Built in hook for hanging