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Keithley Products and Application Insights Help Engineers Innovate


For more than 70 years, Keithley, a Tektronix company*, has been designing, manufacturing and marketing advanced electrical test instruments and systems for the specialized needs of electronics manufacturers in high performance production testing, process monitoring, product development and research.

Keithley has approximately 500 products that are used to source, measure, connect, control or communicate direct current (DC) or pulsed electrical signals. Keithley customers include scientists and engineers in the worldwide electronics industry involved with 3D sensing, advance materials research, semiconductor device development and fabrication, and the production of end products such as portable wireless devices.

*NOTE: Keithley Instruments was acquired by Danaher Corporation in 2010 and merged with Tektronix.


DC Power Supplies & Battery Simulators

Keithley Power Supplies


Source Measure Units (SMUs)

Keithley Source Measure Units

Digital Multimeters

Keithley Digital Multimeters


Low Level / Sensitive Instruments

Keithley Low Level / Sensitive Instruments

Switching, Data Acquisition & Logging

Keithley Switching, Data Acquisition & Logging


Parameter Analyser

Keithley Parameter Analyser