Ralston DCAP-500PSIG-FL [DCAP-300PSIG-FL] Pneumatic Scissor Hand Pump, 1/4" Male NPT, Pressure FieldLab, 500 psi / 35 bar / 3.5 MPa

DCAP-500PSIG-FL 650 psi pneumatic hand pump, 500 psi gauge (0.1% of reading accuracy), 3ft hose, process connection.
An exceptionally durable hand pump for use in the field for doing pressure calibration, testing and custody transfer. Perform pneumatic field calibrations on pressure transmitters, switches or gauges using an external pressure calibrator as the reference.