JMAR Technologies Announces Purchase of Biosentry Water Monitoring System by City of Tucson

Business Wire, August 6, 2008

SAN DIEGO -- JMAR Technologies, Inc. (OTCBB: JMAR), a leading developer of advanced laser, photonics and detection technologies, today reported that the City of Tucson, Arizona, has purchased the Company's BioSentry[TM] System with a congressional grant administered through the U.S. Environmental Protection Agency (EPA). The project is a continuation of the Tucson Water Security Demonstration Project in EPA Region 9. The purchase represents the third BioSentry to be installed by a major U.S. municipal water department.

"Our purchase of the BioSentry system is based upon the need to complete both proof of concept testing by the University of Arizona and operational field evaluations by Tucson Water with the unit installed in the distribution system," said Bruce Johnson, Deputy Director of the Tucson Water Department. "Based upon testing results, the BioSentry system may become a component of our water monitoring program to maintain high-quality, safe, drinking water for the City of Tucson."

The laser-based BioSentry system, the first major commercial product from JMAR's advanced research group, can immediately detect the presence of microorganisms and classify them within minutes, helping to ensure the continuing safety and quality of water supplies. It can easily be integrated into most water delivery systems, and it offers an optional, state-of-the-art touch screen interface that provides a real-time graphical depiction of water status. In Tucson it may be part of a suite of instruments for chemical and biological detection.

"Based on the recently released test data from the EPA, we are confident that the City of Tucson will experience similar positive test results," JMAR Technologies' President and CEO C. Neil Beer, Ph.D., commented, "We expect other cities will take note of Tucson's extensive monitoring program and the fact that BioSentry is being implemented to support this critical operation."

To be added to JMAR Technologies' investor lists, please contact Haris Tajyar at htajyar@irintl.com or at 818-382-9702.

About JMAR

JMAR Technologies, Inc. (OTCBB: JMAR) is a leading innovator in the development and commercialization of sensing systems for the detection of chemical, biological, radiological, nuclear and explosive (CBRNE) materials. Coupled with its established expertise in building advanced laser systems, JMAR provides solutions for a broad range of military, industrial and commercial applications. The Company draws on more than twenty years of experience and twenty-nine patents in photonics, laser and detection technologies to develop products and solutions that address some of the world's most pressing issues such as water quality, hazard detection and homeland security. JMAR's vision is to continue to develop innovative technologies and products that support the advancement of global health, safety, and security initiatives. For further information on JMAR Technologies, please visit www.jmar.com.

Forward Looking Statements: This news release contains certain "forward-looking statements." Forward-looking statements are based on current expectations and assumptions and are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified, and many of which are beyond the Company's control. Actual results could differ materially from these forward-looking statements as a result of a number of factors, including the uncertainty of acceptance in the market for our products and technologies or the acceptance of our customers' products or technologies which incorporate our products and technologies, the failure of our technology to perform as predicted, competition from alternative technologies, uncertainties as to the size of the markets, cost and margins for JMAR's products, current or future government regulations affecting the use of JMAR's products, the lack of availability of critical components, the degree of protection from future patents, other risks associated with the development or acquisition of new products or technologies and those risks detailed in the Company's Form 10-K for the year ended December 31, 2007 filed with the SEC. Given these risks and uncertainties, investors are cautioned not to place undue reliance on such forward-looking statements and no assurances can be given that such statements will be achieved. JMAR Technologies, Inc. does not assume any duty to publicly update or revise the material contained herein.