use a calibrated (01/01/2026) Yokogawa 7552 to compare test the Keithley 179-20A, in good working condition;
the auction incude meter and a new red/black test cord (30A).
free ship to US 48 states
if you need the more accurate testing result, please do a calibration for the Keithley 179-20A, I have no more time to do it since it is a low value kit.
https://www.ebay.com/itm/187991166224