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Spinoff story
Personal Alarm System
A real-world story of NASA technology finding a life beyond the mission.
About this technology
Overview
Sentry Products, Inc. commercialized a personal security system based on NASA space telemetry. The heart of system is ultrasonic pen size transmitter which can be used by prison guards, teachers, and others such as the handicapped and elderly. When problem arises, be it threat of violence or medical crisis, pen transmits silent signal to nearby receiver. Within an institution, apartment or office building receiver may be one of many that are wired to a central console that will display the exact location of the emergency.