Request InfoKeithley Instruments Inc.CLEVELAND, Oct. 4, 2011 — Keithley Instruments Inc. has announced a low-cost addition to its Series 2400 SourceMeter instrument family. As with all of the company’s source measurement unit instruments, Model 2401 is optimized for high-precision test applications such as current versus voltage characterization of photovoltaic cells, high-brightness LEDs, semiconductor devices, low-voltage materials as well as resistance measurements. It provides these advanced source and measurement unit capabilities at 20-V and 1-A signal levels. 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