Exhibit 23(a). Consent of PricewaterhouseCoopers LLP




                       CONSENT OF INDEPENDENT ACCOUNTANTS


We hereby consent to the incorporation by reference in the Registration
Statement on Form S-8 of our report dated November 2, 2001 relating to the
consolidated financial statements and financial statement schedules included in
Keithley Instruments, Inc.'s Annual Report on Form 10-K for the year ended
September 30, 2001.




/s/ PricewaterhouseCoopers LLP
------------------------------
PricewaterhouseCoopers LLP.

Cleveland, Ohio
May 10, 2002