Princeton Gamma Tech Instruments, a subsidieary of Princeton Security Technologies, Inc. (OTCBB: PSGY), which develops Radiation Isotope Identifiers and Spectroscopic Area Monitors for the homeland security and medical markets, received a sizeable new order from Illinois-based systems integrator, Exigent Security Products. Exigent Security Products has already successfully installed the pilot system for the National Naval Medical Center, Bethesda, MD and is expanding the network of monitors to screen radiological materials used for patient treatments in the hospital network.