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This pump is manufactured with high quality components for calibrating Analog / Digital gauges by comparison method. It can be used for lab and field applications. There is a pressure / vacuum changeover switch in the pump, which is used for selecting either vacuum or pressure output. It is fitted with a fine Adjustment valve and a Release valve. The output pressure / vacuum of the hand pump can be adjusted precisely by the fine Adjustment valve while calibration. Release valve is used for releasing the pressure / vacuum after calibration.
