Attached files
| file | filename |
|---|---|
| 10-K - FORM 10-K - KEITHLEY INSTRUMENTS INC | l38272e10vk.htm |
| EX-32.2 - EX-32.2 - KEITHLEY INSTRUMENTS INC | l38272exv32w2.htm |
| EX-31.2 - EX-31.2 - KEITHLEY INSTRUMENTS INC | l38272exv31w2.htm |
| EX-31.1 - EX-31.1 - KEITHLEY INSTRUMENTS INC | l38272exv31w1.htm |
| EX-22.1 - EX-22.1 - KEITHLEY INSTRUMENTS INC | l38272exv22w1.htm |
| EX-14.1 - EX-14.1 - KEITHLEY INSTRUMENTS INC | l38272exv14w1.htm |
| EX-32.1 - EX-32.1 - KEITHLEY INSTRUMENTS INC | l38272exv32w1.htm |
Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No.
33-2496, No. 33-49380, No. 33-72606, No. 333-00933, No. 333-21999, No. 333-37136, No. 333-157310,
No. 333-88088, No. 333-117992, No. 333-135069 and No. 333-157310) of Keithley Instruments, Inc. and
its subsidiaries of our report dated December 11, 2009 relating to the consolidated financial
statements and the effectiveness of internal control over financial reporting, which appears in
this Form 10-K.
/s/ PricewaterhouseCoopers LLP
Cleveland, Ohio
December 11, 2009
Cleveland, Ohio
December 11, 2009