Key Features Main Units Product Features: -350 to 400 inH2O (-860 to 1K mbar), 0.02%FS Accuracy For the Additel 760-D Calibrators Model Description Buy Now Price ADT760-D Additel ADT760-D Automated Handheld Pressure Calibrator, -12.5 to 35 psi (-0.86 to 2.5 bar) $6,995.00 ADT760-D-DL Additel ADT760-D-DL Automated Handheld Pressure Calibrator, -12.5 to 35 psi (-0.86 to 2.5 bar), with HART and Datalogging $8,745.00