RFTrax Announces Release of First RFID-Enabled CZT Radiation Detector for Supply Chain Security Applications

RFTrax Inc., a premier supplier of intelligent sensors, inventory tracking and security solutions utilizing wireless and web-based technologies, today announces that it has released its latest RFTrax RAD-CZT gamma radiation sensor offering into full production.

Allyn, WA March 5, 2004 - RFTrax Inc., a premier supplier of intelligent sensors, inventory tracking and security solutions utilizing wireless and web-based technologies, today announces that it has released its latest RFTrax RAD-CZT gamma radiation sensor offering into full production. RFTrax is the first company to release a production Cadmium Zinc Telluride (CZT)-based radiation sensor platform that is RFID-enabled for detecting low radiation levels in container shipments as part of the homeland transportation and logistics security efforts underway nationwide.

The newest member of the RFTrax, Inc. r3Sensor product line, the RFTrax RAD- CZT sensor configuration is designed to provide a container security and radiation detection platform for most Operation Safe Commerce and other inventory management applications. The RAD- CZT sensor is a very low power, highly-sensitive radiation monitor that can detect the gamma radiation from such potential dirty-bomb candidates as Cobalt 60, Cesium 137 and Iridium 192 substances which are highly radioactive, yet readily available as a result of their use in medical and industrial applications.

RFTrax radiation sensors are now available in two configurations: RAD-Si employing a Silicon detector substrate; and RAD- CZT employing a Cadmium Zinc Telluride detector substrate. Both types operate by converting gamma photons from radioactive substances into electronic pulses, and counting the pulses received over a period of time.

Sensitivity for the RAD-Si configuration is 1.0 milliREM per Hour, while sensitivity for the RAD- CZT configuration is 0.1 milliREM per Hour. Each sensor has an adjustable threshold to exclude normal background radiation levels that are naturally occurring.

The RAD-series sensors can be programmed to provide either a "fault/no fault" condition when radiation reaches a threshold above background, or can provide a value for the amount of radiation that has been detected since the last sample, and allow external business logic to make a determination if these received values are above desired limits for the circumstances being monitored. The complete radiation detector is about the size of a matchbox and operates on a 3.6v lithium battery.

The RAD-series sensors work in conjunction with other RFTrax r3Sensors or can function independently. All r3Sensors can monitor and record events over a period of months and rebroadcast that information in real-time or when accessed by an appropriately-equipped device utilizing RFID, GSM, satellite, or other wireless communication mediums.

About RFTrax
RFTrax Inc. is a premier supplier of intelligent sensors, inventory management and security solutions utilizing wireless and web-based technologies. RFTrax solutions allow their clients to continually track the movement of, and monitor the security of, any item as it moves along the supply chain.

Headquartered in the Pacific Northwest, in Allyn, Washington, RFTrax is a privately held company. For more information about RFTrax, please visit http://www.rftrax.com, or email e-mail protected from spam bots

# # #