Model HP Hand Pump provides a dual source of pneumatic pressure and vacuum for verifying the calibration pressure instrumentation. Pump can generate pressures up to 30 psi (2 bar) and vacuum to -25" Hg (-850 mbar). The compact pump is designed for portability and single hand operation. Model HP features a pressure relief valve and fine adjustment for control better than 0.0015 psi (0.1 mbar). Pump includes two 39" (1 m) hoses terminating in 14" female NPT connections and instruction manual.