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Keithley Instruments Inc.

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Request RMA Number
Keithley U.S. Service Center
28775 Aurora Road
Cleveland, OH 44139
Phone 800-552-1115
Fax 440-498-2704
To receive an RMA number and shipping instructions, please contact the U.S. Service Center.
  • Call us at 800-552-1115 (Monday- Friday, 8:00 AM to 5:0 PM EST). If you call after hours, please leave a message and we will return your call within one business day.
-or-
  • Use the form below to contact us. We will contact you within one business day.
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