Pressure Calibration Pumps 8100 Series (manually operated) Versatile: Pressure pump for calibration of transmitters, gauges etc.;Safe: Does not use electricity or high pressure bottle;Adjustable: Provided with fine adjustment for the entire pressure range;Robust: Heavy duty construction;Portable: Compact size and lightweight;Easy to use: Low effort;Flexible in use: Compatible with the PMY Pressure Module, PC-507 and others. Manual Specification