The GE Druck DPI 800 and DPI 802 Series of Pressure Indicator/Loop Calibrators is a complete range of advanced, robust and simple to use hand-held instruments. Highly cost effective, the GE Druck DPI-800 and DPI-802 are ideal for test/calibration of many popular process parameters. The ideal pressure measurement tool All-inclusive accuracy can be relied on from one year to the next, even in tough environmental conditions Single or dual range configuration Pressure test and maintenance Transmitter calibration Loop set-up and diagnostics Switch verification > Each Unit Includes Batteries Calibration Certificate User Guide