E.S.I. Environmental Sensors Inc.

E.S.I. Environmental Sensors Inc.

August 26, 2010 17:11 ET

ESI Back Trading on TSX Venture Exchange

VICTORIA, BRITISH COLUMBIA--(Marketwire - Aug. 26, 2010) - E.S.I. Environmental Sensors Inc. ("ESI" or the "Company") (TSX VENTURE:ESV) -

At the request of the TSX Venture Exchange, and further to the Company's news release of August 24, 2010, the Company advises that the Exchange's reinstatement of the Company's shares for trading on the Exchange is not to be construed as the Exchange stating that the Company is "fully compliant" with Exchange policies.

About ESI

ESI is a leading manufacturer of patented and proprietary solutions for environments where understanding the presence, movement, and/or amount of water are important. Major market sectors include: Agriculture, Golf and Turf, Scientific Research, Civil Engineering and Crude Oil. ESI solutions have been successfully introduced into more than 40 countries to enable customers to optimize their operations by monitoring the presence and movement of water, managing irrigation systems, and monitoring the integrity of landfill covers. Most recently, the Flo·Point™ instrument has been introduced to the Oil industry to measure the volumetric presence of water pumped during crude oil extraction for characterization and optimization of the process. ESI differentiates itself by translating the best technology and science available into practical, easy to use solutions. Irrigation managers, Reservoir Engineers, and Scientists have adopted ESI's products for their accuracy, ease of use, repeatability, and ability to operate in challenging environments. ESI is publicly traded on the TSX Venture Exchange under the symbol "ESV". Further information about ESI may be obtained through the Company's website at www.esisensors.com.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

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