FOR IMMEDIATE RELEASE

January 8 , 2004.

Guava Technologies, Inc., a biomedical products company focused on developing and commercialising cell-based analysis systems for life science R&D and clinical diagnostics, today announced it doubled revenues from sales of its innovative products during 2003 for the second consecutive year.

Guava Technologies, Inc. announces record 2003 revenues ..

Guava Technologies, Inc., a biomedical products company focused on developing and commercialising cell-based analysis systems for life science R&D and clinical diagnostics, today announced it doubled revenues from sales of its innovative products during 2003 for the second consecutive year. Triple-digit revenue growth was driven by strong sales of the Guava PCA, Guava PCA-96, and the Guava PCA-96 AFP Systems, as well as key reagent and software products.

"New products, fueled by strong demand from cell biology research customers at top pharmaceutical and biotechnology companies, as well as many academic and government laboratories, drove sales growth," said Rajen Dalal, president and chief executive officer of Guava Technologies. "Our expanded sales and marketing team has been very effective at demonstrating to more customers that Guava's turnkey micro-volume approach to cell analysis and counting makes sophisticated cellular assays more affordable and accessible, reducing research time and the cost of discovering and developing new therapies and vaccines."

Guava Technologies has today installed hundreds of systems at leading research organisations worldwide. All of the top 20 pharmaceutical and the top 10 biotechnology companies, as well as the National Institutes of Health and many leading universities and government labs have purchased one or more Guava instruments for their cell analysis research.

During 2003, Guava launched the Guava PCA-96 System, a green-laser based system that can count, screen, and profile cells in the highly productive 96-well plate format. The Guava PCA-96 began shipping in May. Guava also launched its new Guava PCA-96 AFP System in October, the only solid state blue-laser, micro-volume cell analysis system capable of screening single cells at the research bench top for GFP (green fluorescent protein) expression in an automated format.

About Guava Technologies

Guava Technologies, Inc. is a leading provider of integrated, fully optimized microcytometry and cell counting systems. Guava serves the worldwide life science, biotechnology and pharmaceutical industries, offering a state-of-the-art, comprehensive portfolio of products designed to accelerate discovery and increase productivity right at the laboratory bench with accessible, easy-to-use solutions to the biologist's testing problems. Guava's products have broad applications in scientific research, drug discovery, cell counting, and optimization of commercial bioproduction. Guava's technology also offers potential for use in clinical testing and blood processing, as well as other areas where single cell counting is important.

The Guava PCA systems offer an integrated, optimised approach that takes the guesswork out of single cell analysis and counting. Based on patented micro-capillary technology, the Guava PCA systems are available in three formats. These cell analysis systems are flexible, highly affordable and ultra-compact, requiring only a few microlitres of sample volume, thus saving precious and expensive cells, reagents and compounds. Guava offers a variety of assays and dedicated software modules for the Guava PCA systems, enhancing the system's overall ease-of-use.

More information about the company and its products is available at www.guavatechnologies.com.

CONTACTS:

Worldwide Headquarters Guava Technologies 25801, Industrial Boulevard Hayward, CA 94545-2991 USA www.guavatechnologies.com

EUROPE: Dr Bill Bradbury tel.: 44-208-546-0869 email: wbprimetek@aol.com N.AMERICA: Marie Martin tel.: +1-510-576-1427 email: mmartin@guavatechnologies.com Joan Kureczka tel.: +1-415-821-2413 email: jkureczka@aol.com