Low-level, high-precision and specialty measuring instruments from Keithley

Since the introduction of its first electrometer—the Model 200—in 1951, Keithley has been a pioneer in the precise detection of tiny electrical signals. Today, Keithley offers a comprehensive range of high-sensitivity measurement instruments specifically designed for characterizing low-level phenomena at the limits of metrology.

Whether it's precision current sources, nanovolt or picoampere meters, or advanced electrometers, Keithley delivers proven solutions for demanding applications in research, development, and quality assurance. Our devices enable highly accurate and reproducible measurements while maintaining high speed and reliability—ideal for applications in semiconductor research, materials science, or sensitive sensor and component testing.