GraffitiTech has developed an ultrasonic sensor technology that immediately alerts authorities to an act of graffiti vandalism while it is in progress. The GT-1 is currently deployed by police departments throughout the U.S. and abroad. Over 100 arrests through the use of our patented device are solid testimony to its effectiveness. This technology, which is available to law enforcement and security alarm companies, can save the U.S. Billions of dollars in annual graffiti clean-up expenses.