The Ultra MiniRes High Precision Calibration Harness operates at three different resistance levels. The calibration harness is included with the Ultra MiniRes when you purchase a meter directly from us.  However, if you find that you need to purchase a calibration harness for an older meter, please clarify which MiniRes model you need it for, as the designs are slightly different for older models.  Please follow the directions in our Owner's Manual, and feel free to ask questions!
Typical shipping cost within the U.S. is $50. Let us know if you have special shipping instructions or would like to have shipping billed to your company's FedEx account.