EST Announces Follow On Order From Menssana Research Inc.

Electronic Sensor Technology Inc

. (Pink Sheets:ESNR), a leading provider of ultra-fast vapor analyzers, announced today that it had received an order for ten model 4200 instruments from Menssana Research Inc. Fort Lee New Jersey, the leading research company in the area of breath analysis.

"We are pleased to strengthen our association with Dr. Michael Philips and Menssana Research Inc. Dr. Philips is a pioneer in breath analysis and is the leading developer of advanced new breath tests for detection of diseases including: lung cancer, breast cancer, heart transplant rejection, ischemic heart disease, kidney disease, tuberculosis and diabetes mellitus," said William Wittmeyer, COO of EST, Inc. 

The zNOSE is a very versatile, ultra-fast Gas Chromatograph (GC). It is used in medical research to detect trace amounts of volatile organic compounds found in human breath that are associated with specific diseases and the patients state of health. The zNOSE is also used to identify volatile organic compounds in trace amounts for detection of explosives, chemical warfare agents, illegal drugs and adulterants in foods. For more information, please visit our website at www.estcal.com.

About Electronic Sensor Technology: 

Founded in 1995, Electronic Sensor Technology has developed and patented a chemical vapor analysis process. EST's product provides near real time analysis of gasses detecting volatile organic compounds in amounts as low as one part per trillion. EST's product has been shown to detect salmonella and e-coli contamination of food sources; chemical warfare agents such as Sarin and Agent Orange and Chemical pollutants in the environment.

SEC Filings and Forward-Looking Statements

This press release includes forward looking statements, including the Company's expectations regarding its ability to develop and access capital markets and its ability to achieve expected results in the chemical detection and analysis industry. The forward looking statements are identified through use of the words "potential," "anticipate," "expect," "planned" and other words of similar meaning. These forward-looking statements may be affected by the risks and uncertainties inherent in the chemical detection and analysis industry and in the Company's business. The Company cautions readers that certain important factors may have affected and could in the future affect the Company's beliefs and expectations and could cause the actual results to differ materially from those expressed in any forward-looking statement made by or on behalf of the Company.

CONTACT:  Electronic Sensor Technology
          William Wittmeyer
          805-480-1994 ext 105
          805 214 1860 direct
          650 714 0823 cell