The IKM PC705M IS pressure calibrator is compact and rugged. It was originally designed for use on offshore drilling rigs, offering reliable performance under the most severe conditions. Each unit is calibrated against precision pressure equipment which is traceable to national standards and each unit is supplied with a calibration certificate. The PC705M features high accuracy and stability which is achieved by use of a piezoresistive transducer with a built-in temperature compensation. Unlike some other pressure calibrators, accuracy is maintained while decreasing pressure which makes the unit ideal for verification of hysteresis. All units are calibrated in positive as well as in negative direction. You can switch the engineering units between these options: bar, mbar, hPa, kPa, MPa, PSI, kp/cm2, cmH2O, mH2O, inH2O, ftH2O, mmHg, and inHg.