AI-2200 Hand Pump Pressure and Vacuum Calibrator is a high-quality combined pressure, vacuum hand pump and provides maximum pneumatic pressure efficiently and works effortlessly. Application: Useful for testing and calibration of pressure and vacuum gauges, transmitters both in the lab and field. hand pump calibrator, Pneumatic hydraulic hand operated pressure pump vacuum pump hand pressure calibrator vacuum calibrator pneumatic pressure calibrator portable pressure vacuum calibrator master hand pump calibrator. Generally used in testing and calibration purposes for Pressure and Vacuum gauges in laboratories and field areas.