Product DescriptionAccurateMultiple Unitsg, oz, ozt, dwt,gn and ct.Capacity:50g/ 1.7637oz/ 1.6075ozt/ 32.15dwt/ 771.62gn/ 250ctReadability:0.001g/ 0.001oz/ 0.001ozt/ 0.001dwt/ 0.02gn/ 0.005ctAccurate OperationDelivers accurate results to ensure your creation is deliciously perfect.How to Calibrate:Turn the scale by pressing ON/OFF Key.Wait for the display to show ''0.000g'', the press and hold ''MODE'' Key till the displayshows ''CAL'', then release.Press ''MODE'' Key again, display will flash ''CAL'' followed by the required calibration weight.Place the required calibration weight on the center of the platform, display will show 'PASS',then return to normal weighing mode.Calibration is completedRepeat above steps if something goes wrong.6 Kinds of UnitsAccuracy & CapacitySuper High PrecisionMutil-FunctionMeasure diamond ,jewelry,pearl,coins,gold ,silver,lab,carat ,coffee beans,pill ,powderYou Will Get1 x Digital powder scale1 x tweezers1 x weighing tray1 x 50gram calibration weight1 x User guide2 x AAA batteries