美国采购需求：数字高度计、精密测量仪器、工业测量工具、制造用高度计、数字测量解决方案、数控刀具高度测量

I'm interested in purchasing a high accuracy double-beam digital height gauge. Could you let me know if there is an option for a long form NIST traceable certification? If so, what would the additional cost be for including this certificate with the gauge? Additionally, I'd like to understand the payment options you offer for this purchase. Would you be able to provide details on that as well? Looking forward to your response!