Power Supply 100~240V,50/60Hz SpecificationsRB2000Measuring RangeSpherical -25~+25D 0.01/0.12/0.25D StepCylinder -10~+10D 0.01/0.12/0.25D StepPrism 0~6 0.01Addition 0~10DAxis 0~180° 1°StepPupil Distance40-86mm,0.5mm StepDisplay5.7" LCDPrintThermal PrinterPower Supply100~240V,50/60HzWeight~7kg Auto Lensmeter