Newbury Park, CA -- (ReleaseWire) -- 09/28/2006 --Electronic Sensor Technology (EST) (OTCBB:ESNR), a leading provider of innovative homeland security and environmental solutions, announced the receipt of an initial order for 3 Model 4300 zNose(R) instruments to be delivered to the Government of Kuwait through EST's distributor, Applied Systems International, Inc., for their use in homeland security applications. It is anticipated that this initial order is a precursor to additional follow on orders.

"We are very pleased with this initial order that I believe is the beginning of a continuing long-term relationship with the Government of Kuwait," said Dr. Teong Lim, President and CEO of EST. "We expect the Government of Kuwait to use these zNose(R) instruments to strengthen their security positions in the near future."

More information on the use of the zNose(R) for security applications can be obtained by clicking the following link:

http://www.estcal.com/TechPapers/Security/zNose_Debuts_ASIS.pdf

About Electronic Sensor Technology:
Founded in 1995, Electronic Sensor Technology has developed and patented a chemical vapor analysis process. We believe that the Company's product line is positioned to eliminate key vulnerabilities in the homeland security market, specifically in maritime port, airport and border security applications.

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.