Druck Electrical Calibrators Buy Druck Electrical Calibrators at best prices in Oman. Models of Druck Electrical Calibrators are mentioned below: Druck DPI 880 Multi-Function Calibrator Druck DPI 620 Genii Multifunction Calibrator Druck UPS III Loop Calibrator Druck DPI 802 Pressure Indicator and Loop Calibrator Druck DPI 620 Genii-IS Multifunction Calibrator