Electronic Sensor Technology Appoints David Long as the New Associate Director of Sales of the Corporation.

NEWBURY PARK, Calif. -- Electronic Sensor Technology (EST) (OTCBB:ESNR) has just announced the appointment of David Long as the new Associate Director of Sales. Mr. Long will be responsible for marketing and sales of the zNose family of products to the North American market.

Mr. Long has extensive successful experience in the marketing and sales of analytical instruments to commercial and government customers. David comes to EST from Airsense North America, where he served as Director of Sales and Operations and was the key individual responsible for establishing the company's presence in the North American market. David has managed sales forces large and small, directed sales representatives, and managed internal sales departments. A graduate of Southwest Texas University, he brings to EST the ability to expand the sales force on several frontiers.

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 military applications, maritime port 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. For a discussion of these factors, please refer to our recent filings with the Securities and Exchange Commission, including our most recent report on Form 10-KSB. The Company undertakes no obligation to update forward-looking statements to reflect events or circumstances after the date hereof.