Phase IV Engineering Inc is engaged in research, development and production of passive and active wireless sensor and monitoring products. The firm is responsible for inventing passive (battery-free) wireless sensing based on Radio Frequency Identification (RFID) technology. This passive technology provides the communications and identification capabilities of RFID with sensing and monitoring included. Phase IV has added GPS, local area network, and SATCOM communication links for world-wide infrastructure-free tracking and monitoring to these Passive RFID and Active RFID sensing systems. These systems have been optimized for commercial applications including agriculture, transportation and industrial applications, enabling customers to find creative and breakthrough solutions to challenging sensing and communications problems. Phase IVs solutions are based on extensive expertise in the development of RFID, RF communications, MEMs sensors; signal processing and ASIC design and manufacturing.