SAFER Systems Announces New Release for SAFER Real-Time Chemical Emergency Response Solution

Real-Time Integration to Portable, Wireless Sensors from RAE Systems

Camarillo, Calif. June 21, 2005SAFER Systems and RAE Systems (Amex: RAE), the recognized global leaders in integrated software for chemical emergency response solutions and wireless toxic gas sensing systems, today announced the official release of SAFER Real-Time and SAFER STAR Version 9.2 Integrated Software for Chemical Emergency Management for the chemical and petrochemical processing industries.

SAFER Systems Real-Time plume dispersion modeling software offers a unique and proprietary solution, worldwide, to manage any toxic chemical emergency event. This is the only real-time software that can time integrate wired or wireless weather and sensor data to estimate the toxic chemical release rate. Other unique SAFER Real-Time features include hydrogen fluoride (HF) modeling, complex terrain, and liquid mixtures and acquired data from multi-component liquids.

Over 50 upgrades were made to the program, including:
pool only calculations
wireless gas monitoring (AreaRAE)
multiple weather station capabilities

SAFER Systems focused on refinement of their patented Advanced Back Calculation (ABC) module, which provides Estimation of toxic Substance Release routines. This update assures that the routines can be used for a wide variety of emissions including elevated emission sources. The program is equally useful during an actual event and for post-event assessment.

An interface to the RAE Systems wireless gas monitoring device, AreaRAE, allows the GPS enabled toxic gas sensors to provide inputs to the ABC modeling module, improving the performance of the algorithm, through a completely portable and wireless gas monitoring network. The basis of this enhancement is a data acquisition system that provides interaction between RAE Systems AreaRAE networks and SAFER products. AreaRAE supports up to five simultaneous chemical sensors including oxygen, lower explosive limit, total volatile organic compounds (VOC), hydrogen sulfide, sulfur dioxide, carbon monoxide, ammonia, chlorine and others.

Leveraging RAE Systems proven sensing networks with our software solutions provides industrial ER Management teams a uniquely robust solution for assessing and responding to toxic releases, said Robert K. Elders, CEO of SAFER Systems.

For more information about the joint SAFER Systems / RAE Systems solution, please contact sales@safersystem.com or RAESales@raesystems.com.

About SAFER Systems
SAFER Systems is the recognized global leader in chemical emergency management software and has been for the past twenty-five years. SAFER provides global 500 corporations and government entities with a comprehensive network of emergency response management, safety analysis, and engineering software tools. SAFER Systems software is used to track and predict toxic gases (inside and outside of buildings), along with fires and explosions, in the chemical, petrochemical, refining, pulp & paper, pharmaceutical and transportation industries. Using weather data, gas sensors, GIS, terrain, and population data, along with the chemical and physical properties of any given chemical, SAFER software is used as the chemical emergency response solution, saving lives through predicted scenarios and real-time modeling. SAFER Systems software is routinely used for risk assessment, training, education, emission and odor management, engineering analysis and in many other day-to-day applications by the Environment Health and Safety (EHS) Management of each facility. For more information, please visit www.safersystem.com .

About RAE Systems
RAE Systems is a leading global developer and manufacturer of rapidly-deployable, multi-sensor chemical detection monitors and networks for homeland security and industrial applications. In addition, RAE Systems offers a full line of portable single-sensor chemical and radiation detection products. RAE Systems products enable the military and first responders such as firefighters, law enforcement and other emergency management personnel to detect and provide early warning of weapons of mass destruction and other hazardous materials. Industrial applications include the detection of toxic industrial chemicals, volatile organic compounds and petrochemicals. RAE Systems products are used by many U.S. government agencies, including the Department of Homeland Security, the Department of Justice, and the Department of State, as well as all branches of the U.S. military, and by numerous city and state agencies. Our end users also include many of the worlds leading corporations in the airline, automotive, computer and oil industries. Our products are used in civilian and government atmospheric monitoring programs in over 50 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 Systems and its products. In addition, forward- looking statements should be considered in the context of other risk factors discussed in Rae Systems filings with the Securities and Exchange Commission, including but not limited to the companysannual 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 on the date hereof, and Rae Systems assumes no obligation to update such statements.