Aerospace - Defense

Since his retirement from Northrop Grumman TASC in March 2002, Mr. Frey has served on the Advisory Board for the National Geospatial Intelligence Agency (NGA) and IDELIX Software, Inc., and on special panels supporting the management of the National Reconnaissance Office (NRO) and the Director of Central Intelligence (DCI).. In his role as Chairman, Mr. Frey will assist the Company in accelerating the adoption of zNose® -- an electronic nose capable of rapid detection of threats and illegal compounds utilizing a patented vapor analysis technology.

"I am delighted to welcome somebody of Jim's stature to such a key role for our Company," said Edward J. Staples, Electronic Sensor Technology's Chief Executive Officer. "zNose® has already been sold in approximately 30 countries worldwide to clients such as the United States Army, Navy, Air Force, Marines, Northrop Grumman, Lockheed Martin, Honeywell Corporation and SC Johnson. I am confident that Jim's extensive relationships and experience working with large industrial concerns will help us penetrate these important customers and expand relationships with existing ones."

"I am excited to join Electronic Sensor Technology," said Mr. Frey. "zNose has the potential to play an important role in helping to secure the country through its unique ability to provide comprehensive, real time analysis of any chemical vapor with part-per-trillion sensitivity. I look forward to working with Ed and his team to raise the profile of this exciting technology."

About Electronic Sensor Technology
Founded in 1995, Electronic Sensor Technology has developed and patented a breakthrough chemical vapor analysis process. The company's product line is positioned to eliminate key vulnerabilities in the homeland security market, specifically in commercial building HVAC security, maritime port security, airport security, and border security. Many of the Homeland Security initiatives have greatly increased the need to develop fast and accurate methods of detecting and identifying potential weapons threats. These markets are predicted to grow at rapid rates as a result of increasing government and private sector concern with present security levels.

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. The company undertakes no obligation to update forward-looking statements to reflect events or circumstances after the date hereof.

Source: Electronic Sensor Technology, Inc.

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Contact:
For Electronic Sensor Technology:
CEOcast, Inc.
Ed Lewis, 212-732-4300