Exhibit 23




23. Consent of Experts


                       CONSENT OF INDEPENDENT ACCOUNTANTS
                       ----------------------------------

We hereby consent to the incorporation by reference in the Registration
Statement on Form S-8 (No. 33-2496) of Keithley Instruments, Inc. of our report
dated November 2, 2001 relating to the financial statements and financial
statement schedule, which appears in this Form 10-K.


/s/ PricewaterhouseCoopers LLP

Cleveland, Ohio
December 14, 2001