PRC's MC-7 is the perfect economical solution. This Multimeter Calibration set features a packaged group of 7 ultra-precision resistors (PRC Part #HR3716N) containing values ranging from 1 ohm to 1 MEG, used in the verification and adjustment of the resistance function of 3 ½ and 4 ½ digital multi-meters. To your advantage, MC-7's are usually in-stock & ready to ship in two business days or less!