KEITHLEY 6½-DIGIT USB DMM BREAKS THE $1000 THRESHOLD FOR HIGH ACCURACY BENCH/SYSTEM DMMs

Cleveland, Ohio – June 26, 2007 - Keithley Instruments, Inc. (NYSE:KEI), a leader in solutions for emerging measurement needs, announces the release of the Model 2100 6½-Digit USB Digital Multimeter (DMM), a high precision, low-cost USB-based instrument. The Model 2100 is ideal for a wide range of production test, burn-in, and manual and semi-automatic R&D applications in bench, portable, or small system measurement configurations and is available for a limited-time introductory price of only $795 USD. As the newest member of Keithley’s family of high-performance, precision DMMs, the Model 2100 complements Keithley’s line of premium GPIB-based DMMs and combines advanced measurement performance with Keithley’s reputation for worldwide service and support. To learn more about the Model 2100 6½-Digit USB DMM and view a short, on-line product tour, visit www.keithley.com/pr/071.

High Precision and Accuracy

The Model 2100 features precision 10VDC accuracy of 38ppm 6½-digit resolution at a fast measurement rate of 50 readings/second (at 6½-digits) over the USB bus, a reading rate that is more than twice as fast as competitive offerings. At 4½-digits, the Model 2100 reads more than 2000 readings/second into its internal, 2000-reading data buffer.

Eleven measurement functions cover the most commonly measured parameters, including Volts, Ohms, Amps, and RTD temperature measurement capability, as well as MX+B, dB, and dBm math modifiers. Fully specified accuracies are valid for one year on all functions for ISO-compliant applications and facilities.

The Model 2100 also offers selectable front and rear inputs plus two- and four-wire remote sense resistance inputs that facilitate use as both a stand-alone, benchtop DMM or in small systems applications.

Easy to Set Up and Use

The Model 2100 6½-Digit USB DMM is easy to set up and begin using right out of the box, needing no additional accessories. All units include standard USB cable, power cord, safety measurement probes, and free utility software to ensure quick startup and a lower total cost of ownership.

The Model 2100’s USB interface supports the TMC (Test and Measurement Class) protocol, allowing SCPI (Standard Commands for Programmable Instrumentation) commands to be sent over the USB bus for added data transfer and control options. This TMC-compliant USB interface ensures preservation of existing SCPI test code, saving development time and cost.

The Model 2100 includes KI-Tool, a built-in graphic utility that enables trend plotting and data transfer to a PC. It also includes an add-in tool that is used for importing data directly into Microsoft® Excel and Word documents. USB drivers are also provided with each Model 2100 DMM.

Supports a Wide Range of Applications

Keithley’s Model 2100 6½-Digit USB DMM is suited for test engineers performing manual and semi-automatic electrical function tests and development and R&D engineers performing electrical validation in emerging electrical design and manufacturing regions. It is also suited for service and calibration technicians working in instrument repair and metrology, research scientists, and engineering students in science and engineering laboratories.

The rugged and durable construction of the Model 2100, including a heavy gauge chassis and cover and rubberized front and rear bumpers, makes it suitable for bench applications as well as portable and field applications.

Price and Availability

Keithley’s Model 2100 6½-Digit USB DMM is available for an introductory price of $795 USD through September 30, 2007. After that time, the list price will be $845.

For More Information

For more information on Keithley's Model 2100 6½-Digit USB DMM or to order this product through the company’s online store, visit www.keithley.com/products/dmm/?mn=2100120 or contact the company at:

Telephone: 800-688-9951 440-248-0400

FAX: 440-248-6168

E-mail: publisher@keithley.com

Internet: www.keithley.com

Address: Keithley Instruments, Inc.

28775 Aurora Road

Cleveland, OH 44139-1891

About Keithley Instruments, Inc.

With more than 60 years of measurement expertise, Keithley Instruments has become a world leader in advanced electrical test instruments and systems from DC to RF (radio frequency). Our products solve emerging measurement needs in production testing, process monitoring, product development, and research. Our customers are scientists and engineers in the worldwide electronics industry involved with advanced materials research, semiconductor device development and fabrication, and the production of end products such as portable wireless devices. The value we provide them is a combination of precision measurement technology and a rich understanding of their applications to improve the quality of their products and reduce their cost of test.

Products and company names listed are trademarks or trade names of their respective companies.

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