The PPC P/H Dual portable pressure calibrator with built-in hand pumps offer both pneumatic and hydraulic calibration. It is ideal for checking the calibration of pressure, differential pressure gauges, control values, pressure transmitters, pressure transducers and receiver gauges. Pneumatic range is -0.85 bar to 20 bar (to 300 PSI); hydraulic range is 0 bar to 400 bar (to 6,000 PSI).