Electronic Sensor Technology Inc (ESNR)

[Z-NOSE]

NEWBURY PARK, Calif., Aug 13, 2008 (BUSINESS WIRE) -- Electronic Sensor
Technology (EST) (OTCBB:ESNR), a leading provider of innovative homeland
security and environmental solutions, announces the receipt of an additional
order for 6 units of zNose(R) instruments from its distributor in China. The
instruments will be used by China for security applications.

Electronic Sensor Technology has approximately 80 instruments in China, most of
which are employed in the detection of pollutants in rivers and lakes and
cleanup efforts.

The zNose units are being used by the Department of Public Security in Beijing
for the detection of illegal drugs. The effectiveness of the zNose in this
application further underscores the versatility of the instrument.

"We expect continued growth from these expanding markets for the zNose.
Additionally, our experience in China demonstrates that the zNose is a versatile
instrument with operating capabilities in challenging environments," states
Teong Lim, Chairman and CEO.

For more information on the use of the zNose(R) for security, click on the
following link:
http://www.estcal.com/TechPapers/Security/zNose_Homeland_Security.pdf

About Electronic Sensor Technology:

Founded in 1995, Electronic Sensor Technology has developed and patented a
chemical vapor analysis process with applications for the homeland security and
environment markets.

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.

SOURCE: Electronic Sensor Technology




CONTACT: Electronic Sensor TechnologyWilliam Wittmeyers, 650-574-1257