Measures Gas, Liquid and Vacuum Pressure. Portable meter for absolute vacuum pressure measurements in hospital labs, crystal growing, solvent recovery, distillation, and rotary evaporation. Also used in HVAC, automotive and other industrial applications. Includes a detachable heavy-duty probe with ¼ PS connector for liquid, air, oil and gas. Features a large display with eight units of measure, min/max, hold, low battery indicator, auto power off and an RS232 computer interface. Comes ready to use in a foam-lined, hard-shell carrying case, with 9V battery and instructions. N.I.S.T. traceable certificate of compliance available. Dimensions: 7" × 3" × 1½" (180 × 75 × 35 mm), probe cord: 49” (125 cm) Weight: Meter 8 oz. (220 g), Probe 6 oz. (170 g).