Vaiseshika Electron Devices supplies Pressure Calibrators. Vaiseshika Electron Devices Quality Management System is ISO 9001:2000 compliant. The Pressure Calibrators, PM 3 A has air as pressure medium. The pressure range of the hand pump is -1[-850 mbar] ... 3 Bar and the Analogue test gauge is D=100 mm. There is pressure connection over 2X G 1/4inch female with pressure hose [1.0 mm], and the accuracy of Pressure Calibrator is 0.6%. There is additional case, flexible pressure hose and set of seals found with these calibrators. Set of adapter: G 1/8", G 3/8", G 1/2", G 1/4" female and G 1/8" and G1/4" male.