Ralston DCAP-300PSIG-D [DCAP-300PSIG-D] Pneumatic Scissor Hand Pump, 1/4" Male NPT, Digital Gauge 300 PSIG

DCAP-300PSIG-D 650 psi pneumatic hand pump, 300 psi gauge (0.25% full scale), 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.