International Source Index, Inc. News Release - 11/21/2002

ISI and Commtest Instruments Ltd. Announce Joint Marketing and Converged Product for Condition Monitoring and Vibration Analysis

BUFFALO, New York -- Nov. 21, 2002 -- International Source Index, Inc., creators of The Bearing Expert^TM, and Commtest Instruments Ltd. authors of the VB Series^TM, MAS^TM, and ASCENT^TM, have announced their partnership for integration and joint marketing of their latest product releases. Customers can now take measurements, look up frequencies, analyze performance, and reduce scheduled maintenance and repairs while eliminating costly downtime. The combination of these two products brings condition monitoring technology to a new level of efficiency and ease of use.

In partnership for over 3 years, Commtest and ISI have over 250 installations worldwide. Customers are eagerly anticipating the next release of The Bearing Expert^TM and ASCENT^TM. The Bearing Expert^TM now includes Bearing Prefix and Suffix Descriptions, Diagrams, Extended Harmonics Reporting and extensive new data. ASCENT^TM now includes Automatic Data Collector setup and alarm settings using a) The Proven Method from Technical Associates or b) Automated ISO alarms both 10816 and 2372 and customized HTML reports. These features provide the user equivalent of decades of professional vibration analysis experience embedded right in the software tools to interpret the data and present the information in a truly meaningful way.

ISI's Bearing Expert^TM, the world's leader in Interchange and Vibration Frequency Data celebrates its 12^th year supporting the MRO industry. Installed world wide at over 2,000 of the major manufacturing and industrial customers. Incorporating the most extensive database including: one million bearings interchanges, over 200,000 vibration frequencies, Quick Search by Part number, dimension, type and manufacturer, AFBMA part numbers, and over 100 bearing manufacturers represented worldwide.

Commtest has been providing innovative machine diagnostic tools for over 15 years. The VB Series is now entering its 5^th year of worldwide success. Commtest provides a family of solutions that are affordable, convenient, easy to use, and reliable.

Information on ISI and The Bearing Expert^TM can be found at www.sourceindex.com, or by calling 716.636.8292. Information on Commtest Instruments Ltd. VB Series^TM, MAS^TM, and ASCENT^TM may be found at www.commtest.com or by calling +64.3.374.2337.

About International Source Index, Inc.

International Source Index, Inc., authors of The Bearing Expert^TM database have established the standard in bearing and vibration data in the marketplace. Representing over 1 million bearings and 200,000 frequencies for over 100 manufacturers worldwide, ISI serves over 2,000 major manufacturing and industrial customers globally in the power generation, chemical, pharmaceutical, paper, automotive, metals and mining, and other industries. The company is based in Williamsville, New York.

Commtest Instruments Ltd. (www.commtest.com), developers of VB Series^TM, MAS^TM, and ASCENT^TM, is a company dedicated to creating and producing quality data acquisition and analysis products at exceptional prices for use by industries throughout the world. Based out of Christchurch, New Zealand.

The Bearing Expert^TM is a trademark of International Source Index, Inc.

VB Series^TM, MAS^TM, and ASCENT^TM are trademarks for Commtest Instruments Ltd.