RAE Rae Systems Common Stock

RAE Systems Inc. (NYSE Amex: RAE) today announced updates to its main website to provide useful resources and radiation-detection information to help the people of Japan and international responders involved in the recovery and cleanup effort. The new information can be found at raesystems.com and in Japanese at raesystems.jp.

Informational Resources Launched on April 8, RAE Systems' updated website includes educational background on radiation and its detection, references to up-to-date information on the Japan situation and content to assist in the following areas:

• Power station monitoring
• Protecting first responders, government agency workers and military personnel
• Radiation monitoring for transportation and aid workers
• Monitoring the food supply for radiation
• Radiation monitoring of products exported from Japan
• Protecting workers during cleanup and reconstruction

"Utilizing our expertise in worker safety through hazardous-material detection and monitoring, RAE Systems has compiled resources to help first responders and others involved in the Japan response effort," said Thomas Nègre, vice president of marketing for RAE Systems. "In addition, we have mobilized our company resources, including establishing a 24/7 detection hotline and shifting our manufacturing lines to meet the increased detection needs in Japan."

Keeping Responders Safe First responders, including firefighters, police and emergency medical personnel, along with Japan's government agency workers and Ground Self-Defense Force (GSDF) personnel, are critical to the Japan response effort. Keeping responders safe from high concentrations or cumulative radiation and potentially hazardous gases left in the wake of the tsunami requires specialized gas- and radiation-detection equipment.

At the same time, many people are in transit around Japan, such as truck drivers who are delivering water, food and fuel supplies to damaged areas of the country. Journalists and aid workers also are moving around the country, along with government representatives. Personal radiation meters that track the amount of radiation individuals receive over time can help keep people safe as they move in and out of areas with elevated radiation levels.

Many businesses are impacted, too. Japanese food producers and exporters for many of the country's products are looking to reassure customers that their products are safe for Japanese consumers and for Japan's major export markets in Hong Kong, China and the U.S. Worker safety is a key concern for many businesses.

And as the country begins one of the biggest cleanup and reconstruction efforts of our time, the risks to workers at utility companies, in addition to road, rail infrastructure and construction crews, remains high. As organic materials, such trees and plants, buried in mud breakdown over time, potentially dangerous levels of carbon dioxide (CO2) and hydrogen sulfide (H2S) can be present. These gases and vapors can be stirred up and become airborne during cleanup operations, especially where heavy equipment is used to remove debris.

Supporting the Japan Response The updated website for Japan responders is one of several measures taken by the company to support the people of Japan and the international responders who are helping in the response effort. RAE Systems' has ramped production of its radiation-detection products, including its latest DoseRAE 2 personal dosimeter, and has committed to allocate its radiation-detection products to Japan for the near future. Additionally, the company provides a 24/7 detection hotline (+1-408-952-8200 ext. 8) to handle radiation-detection questions and sensor replacements.

Radiation and Hazardous-Gas Detection As part of its updated website content, RAE Systems' recommends key detection solutions to help protect people and equipment involved in the Japan response effort. These include:

Radiation Protection

• GammaRAE II R - Rapid-response detection and accurate dosimeter measurements.
• NeutronRAE II - Personal protection from neutron and gamma radiation sources.
• DoseRAE - Personal dosimeter for dose-monitoring accuracy.
• DoseRAE 2 - Personal dosimeter and detector in a single meter.
• AreaRAE Gamma - Combination multi-gas and radiation detector.
• ProRAE Guardian - Real-time wireless instrument management software platform.

Hazardous Gas Protection

• MultiRAE Plus - Combination PID and four gas-sensors in a compact monitor.
• MiniRAE 3000 - Advanced handheld volatile organic compound (VOC) detector.
• ppbRAE 3000 - Wireless handheld VOC monitor for precision measurements.
• QRAE II Diffusion - Full-featured, one- to four-sensor gas detector.
• QRAE II Pump - Rugged one- to four-gas detector with powerful built-in pump.
• ToxiRAE Pro - Full range, personal single-gas monitor with wireless capability.
• UltraRAE 3000 - Advanced compound-specific monitor with extended PID range.

About RAE Systems RAE Systems Inc. (NYSE Amex: RAE) is a leading global provider of rapidly deployable, connected, intelligent gas-detection systems that enable real-time safety and security threat detection. RAE Systems products are used in more than 120 countries by many of the world's leading corporations and government agencies.

RAE Systems offers a full line of wirelessly enabled solutions, including personal, hand-held, transportable, and fixed instruments designed to meet the needs of any usage scenario. Applications include energy production, refining, industrial and environmental safety, public-venue safety and government first-responder markets.

For more information about RAE Systems, please visit raesystems.com.

Contact Information: Thomas Negre 408-952-8419 tnegre@raesystems.com