RAE Systems Provides Public Venue Protection for Super Bowl XXXVIII

Sensor network deployment delivered real-time atmospheric monitoring data at high profile event that drew more than 70,000 spectators and 135 million worldwide television viewers

SUNNYVALE, Calif. February 4, 2004 RAE Systems Inc. (AMEX: RAE), a leading global developer and manufacturer of rapidly-deployable, multi-sensor chemical and radiation detection monitors and networks for homeland security and industrial applications and Concept Controls, today announced that they provided public venue environmental monitoring and technical support at the 38th Super Bowl at Reliant Stadium in Houston, Texas. The Super Bowl has grown to become the quintessential American sports and media event, drawing more than 70,000 attendees and over 135 million television viewers from around the world.

RAE Systems has been called on to provide environmental monitoring at events like the World Series, the XIX Winter Olympics in Salt Lake City, the U.S. Open, Major League Baseballs All-Star Game, and most recently, the 115th Tournament of Roses Parade, said Robert I. Chen, president and CEO of RAE Systems. Our highly accurate, networked field-proven solutions provide public safety agencies the real-time, life-critical data they need to assess potentially dangerous situations and save lives.

We are pleased to have been asked to provide the local technical back-up for the Texas and Federal security agencies supporting this event, said Mike Segars of Concept Controls. The wireless AreaRAE is well suited to this type of rapid deployment application.

RAE Systems AreaRAE units were deployed as an ad-hoc network for perimeter monitoring around Reliant Stadium. The AreaRAE units contain data radios that enable real-time data transmission with a base controller located up to two-miles away from the detector. The AreaRAE is widely used by public safety teams around the U.S. due to its highly sensitive photo-ionization detector (PID) for parts-per-million measurement of volatile organic compounds and up to two electrochemical toxic sensors for measurement of specific toxic substances such as Carbon Monoxide (CO) and Hydrogen Sulfide) H2S.

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About RAE Systems

RAE Systems Inc. is the leader in rapidly deployable sensing networks for homeland defense and a leading manufacturer of portable, wireless and fixed atmospheric monitors, photo-ionization detectors, radiation detectors, gas detection tubes, sampling pumps and security monitoring devices. Our customers use our products to monitor gas and other volatile organic compounds in confined spaces, to establish a perimeter security around hazardous material sites and to detect the illicit traffic of radioactive materials. RAE Systems customers operate in such industries as safety and security, oil and gas, pharmaceuticals, utilities, food, chemical, airlines, military and hazardous material storage and disposal, and its monitors are used in civilian and government atmospheric monitoring programs in over 40 countries. For more information about RAE Systems, please visit www.RAESystems.com

Safe Harbor Statement

This press release contains “forward- looking” statements, as that term is used in Section 21E of the Securities Exchange Act of 1934. Forward-looking statements are denoted by such words as continue to be strong. These types of statements address matters that are subject to risks and uncertainties, which could cause actual results to differ materially. Factors that could cause or contribute to such differences include, but are not limited to, the general economic and industry factors and receptiveness of the market to RAE and its products. In addition, our forward- looking statements should be considered in the context of other risk factors discussed in our filings with the Securities and Exchange Commission, including but not limited to our annual report on Form 10-K and 10-Q filings, available online at http://www.sec.gov. All forward-looking statements are based on information available to the company on the date hereof, and the company assumes no obligation to update such statements.