Electronic Sensor Technology, Inc. Receives An Order from Major Paint Company

Friday April 20, 9:30 ET

NEWBURY PARK, Calif.--(BUSINESS WIRE)—April 20, 2007--Electronic Sensor Technology (EST) (OTCBB: ESNR.OB) has received an order from a leading manufacturer of coatings. The company’s zNose® instrument will be used for quality control applications related to measurements of volatile organic chemicals (VOCs) emissions in the manufacturing process.

"We are very excited with this new application for the zNose®. Our product has once again demonstrated its capability to be an integral quality control tool for use in the manufacturing process; particularly, in the measurement of VOC emissions” said Dr. Teong Lim, President and CEO of EST.

More information on the use of the zNose® for quality control can be obtained by clicking the following link:

http://www.estcal.com/TechPapers/Industrial/Plastics.pdf

About Electronic Sensor Technology:

Founded in 1995, Electronic Sensor Technology has developed and patented a Ultra-Fast Chemical Vapor Analyzer.

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.

For Further Information:
Contact:

Electronic Sensor Technology
Frank Zuhde, 805-480-1994, ext. 135