The GaugeCalHP is a portable, self contained, hydraulic pressure generator for calibrating pressure gauges, transmitters, sensors, and safety valves. Pressure to 15 000 psi / 1000 bar / 100 MPa Vacuum to -12.5 psi / -0.8 bar / -86 kPaFaster than any deadweight tester and most automated pressure controllersUse without fluid to generate up to 400 inches H2O (995 mbar) to within 0.01 inches (0.025 mbar). Makes calibrating Differential Pressure Transmitters easy.Easily test large size gauges with the unique pivoting manifoldQuickly bleed air and capture fluid with the no mess drip trayGauge-Safe integral venting system prevents damage to mechanical gaugesUse with water, light oil or air