Ace instrument manufactures high accuracy vacuum cum pressure calibrators with the properties of easy operation and easy portability. The portable vacuum cum pressure calibrator is available with salient features like battery operated and 4-digit backlit lcd for accurate 0 to 1000-kpa range vacuum and pressure measurement. The vacuum cum pressure calibrator is useful for differential pressure, gauge pressure, vacuum gauge and vacuum differential measurements. The portable vacuum cum pressure calibrator is suitable for unit selection between kpa [kilopascals], bar, psi, mbar, psi, in hg, mm hg, oz in2, in h2o, ft h2o, cm h2o, and kg/cm2. Some of the technical specifications of this portable vacuum cum pressure calibrator are useful for vacuum measurement and generation with provision to measure vacuum, differential pressure and gauge pressure; up to 700 mm hg or 94 kpa maximum vacuum generation; and more than 5 bar [kg/cm2] maximum pressure generation. The company supplies rs 232 computer connectivity with acquisition software as optional features with the vacuum cum pressure calibrator.