models capable of 0.015mm and 0.005mm (.0006” and .0002”) distance accuracies, respectively.The 0.015 mm and 0.005 mm (.0006” and .0002”) typical accuracies at 10 m are half of the Maximum Permissible Error (MPE), which is part of the new ASME B89.4.19 Standard for laser tracker performance evaluation. In the future, all laser tracker manufacturers will be required to calculate their specifications based on this procedure.