ESI Corporate Update

Victoria, British Columbia January 11, 2008 – ESI Environmental Sensors Inc. ("ESI", the "Company") TSX-V: ESV is pleased to announce Strategic Alliance with Signature Control Systems of Irvine, California. The two companies have signed a formal agreement to work together to develop sensor probe technologies for the Global Golf, Sports and Commercial Turf Markets.

"This is an important breakthrough for ESI. In addition to securing an important business and customer relationship with Signature Control Systems, a major supplier to a world class company engaged in the Golf, Sports and Commercial Turf Markets, it opens the door to even wider markets and validates industry needs for intelligent, highly accurate, reliable moisture sensors. Our next generation sensors successfully unveiled last month at the world's largest irrigation show in San Diego, meets that need," said David Porter, Vice-President of Sales and Marketing at ESI.

Signature will integrate modified versions of ESI's new Gro-Point probes into their existing propriety platforms. The strategic alliance with ESI creates solutions for wider customer needs and provides Signature a significantly greater opportunity to grow into new markers, particularly in the Golf, Sports Turf, and Commercial Turf Management Segments "by combining our intelligent controllers, desktop and web based software, with ESI sensors for monitoring soil, salinity, soil temperature and wetted front Signature now has the opportunity to provide our customers with an industry defining technology platform," said Brian J Smith, Chief Executive Officer of Signature Control Systems Inc.

About ESI
ESI is a leading developer and manufacturer of patented and proprietary systems for industrial and environmental applications where understanding the presence and content of water is important. Major market sectors include: Agriculture, Golf and Turf, Scientific Research and Oil. ESI products have been successfully introduced into over 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 from producing oil wells for characterization and optimization. ESI differentiates itself by translating the best technology and science available into practical, easy to use solutions. Irrigation managers and scientists have adopted ESI's products for their accuracy, ease of use, repeatability, and ability to operate in challenging conditions. 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.

About Signature Control Systems
Signature Control Systems Inc. is an industry leader in the design and, manufacturing of intelligent equipment for turf grass site management, including Aurora ® Golf Management Systems, Constellation®Turf Management Systems and Avior®Vehicle Management Systems. These products include irrigation controls and sprinklers, site management software, vehicle maintenance and GPS products. Signature provides landscape managers, golf course superintendents as well as property managers direct control of irrigation, vehicle preventative maintenance and tracking as well as many other turf oriented products.

On behalf of the board,

Ian Middleton, Director
E.S.I. Environmental Sensors Inc.

For more information contact:

ESI ENVIRONMENTAL SENSORS INC.
2071C Malaview Avenue Sidney, BC V8L 5X6
Tel: 250.655.3211 or 1-800.799.6324
Fax: 250.655.3299
www.esisensors.com
investor.relations@esica.com

MEDIA CONTACT:
David Porter, Vice President of Marketing
Email: David.Porter@esica.com

THE TSX VENTURE EXCHANGE HAS NOT REVIEWED AND DOES NOT ACCEPT RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS RELEASE.

Material Copyright 2007, E.S.I. Environmental Sensors Inc. Reproduction in whole or in part in any form or medium without express written permission of E.S.I. Environmental Sensors Inc is prohibited.

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