SAN JOSE, CA–( EMWNews – April 1, 2008) – RAE Systems Inc. (AMEX: RAE), a leading global

provider of rapidly deployable sensor networks that enable customers to

identify safety and security threats in real time, today received European

ATEX safety certification for use in explosive atmospheres or hazardous

environments, for two third-generation photoionization detector (PID) based

instruments, the MiniRAE 3000 and ppbRAE 3000. Both of these products have

applications in industrial settings, environmental monitoring, indoor air

quality, and hazardous materials response. These products are used to

specifically measure where hydrocarbon-based chemicals pose a toxic threat.

They can be used for both leak detection and industrial safety.

“Wide measurement range, fast response, wireless interface, waterproof

design and six-month data memory make these versatile and easy-to-use

products for both industrial users and first responders,” said Thomas

Negre, director of instrumentation products for RAE Systems. “The MiniRAE

3000 and ppbRAE 3000 bring third-generation PID technology to the market

for detecting leaks and keeping workers safe.”

“The MiniRAE 3000 and ppbRAE 3000 are designed to provide real results in

real time with a measurement response time of under three seconds, and

support 12 languages,” said Lisa Mork, director of marketing for RAE

Systems. “As with all RAE Systems instruments, these two have buttons

designed to be used with up to three layers of gloves. These products are

ideal for remote monitoring, particularly in rapidly changing

environments.”

The MiniRAE 3000 has an extended measurement range of 0.1 parts per million

(ppm) to 15,000 ppm, giving it the widest measurement range available in

the industry for a PID instrument. The ppbRAE 3000 offers an extended

measurement range of 1 part per billion (ppb) to 10,000 ppm. Both products

feature a large back-lit graphical display with graphical charting

capability and easy viewing in any light condition. Both also feature a

built-in flashlight for operation in extremely dim environments. The

products include over 200 built-in correction factors for accurately

measuring a wide range of chemicals. No tools are required to field service

the PID lamp or sensor or to replace batteries. Both instruments have

optional charging cradles with a computer interface for downloading up to

six months of data for either analysis or record keeping. For wireless data

downloading, an optional Bluetooth interface is available. A wireless modem

with a 160-meter range, compatible with AreaRAE wireless sensor networks,

will also be available. The instruments will be AutoRAE compatible for fast

calibration and bump testing.

Both products are immediately available for shipment and can be bought

through any RAE Systems Certified distributor. Each comes with a battery

charger and Lithium Ion rechargeable battery. Other options include

calibration kits and wireless capability. For more information and a video

demonstration on these products, please visit

www.raesystems.eu/minirae3000.

About RAE Systems

RAE Systems is a leading global provider of rapidly deployable sensor

networks that enable customers to identify safety and security threats in

real time. Products include multi-sensor chemical

detection networks, wireless gas

detection systems and radiation monitors

for energy production and refining, industrial and environmental safety,

and public and government first responder security. RAE Systems’ products

are used in over 85 countries by many of the world’s leading corporations

and by many U.S. government agencies. For more information about RAE

Systems, please visit www.RAESystems.com or www.RAESystems.eu.

Note to Editors: High-resolution photos are available by email or on our

website.