EST Expands zNose(R) Usage into Medical Equipment Market.

NEWBURY PARK, Calif. -- Electronic Sensor Technology (EST) (OTCBB:ESNR), a leading provider of innovative homeland security and environmental solutions, announced that it has successfully demonstrated and sold a unit for use in measuring the smells from rubber and plastic parts used in medical equipment.

"We are very pleased that the zNose[R] has proven successful in this new application. It demonstrates the versatility of the zNose[R] and marks our first use in the medical equipment market," said Frank Zuhde, Director of Sales and Marketing.

For detail on the use of zNose[R] for security applications, click the following link:

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

About Electronic Sensor Technology:

Electronic Sensor Technology develops, manufactures, sells, and supports a product line of patented chemical vapor analyzers. The ultra high-speed gas chromatography coupled with a solid state detector enables analysis of nearly any odor, fragrance, or chemical vapor within ten seconds. We believe that the Company's product line is strategically positioned to address key needs of the homeland security market, environmental and quality assurance applications, and product quality of food and beverage.