Founded in 1994, Intech 21 is a privately held company, which designs, develops and manufactures radio frequency based communication technologies, products and systems for diverse range of control and monitoring applications. The company creates products and systems for a variety of applications based on in-house developed methods and technologies. Based in Glen Cove, N.Y., Intech 21 is the only manufacturer whose spread spectrum power line carrier products and systems have been operating in electrically harsh environments, such as the New York City Transit Authority. It specializes in control and monitoring of temperature, pressure, flow, fire safety, security, vital sign monitoring and tracking and other process and safety signals. The company has pioneered a ring method for communication over power lines, which may be utilized for numerous applications using modular sensor interface components. Intech 21 s systems utilize existing building/facilitys power lines to interconnect processes and equipment into a local area network.