STI International, Inc., is a Texas-based company that manufactures complete M1911 pistols and parts for competition, duty and self-defense. It is most well known for its "2011" modular frame guns (so-called because the lower grip and trigger guard, which is made of a fiber reinforced plastic, is a separate component from the metal upper portion of the frame that comprises the dust cover and frame rails). STI is a family owned and operated business that began 35 years ago with Jack Taylor's invention of the Stopper Pull Station Protector. Safety Technology now markets more than 1000 products throughout the world. These products help prevent false fire alarms, theft and vandalism of the things that protect us all. Headquartered in Waterford, Michigan with an office in Redditch, Worcestershire, England, team STI works hard to continue the work Jack Taylor started. STI-34151 Sensor for Battery Wireless Driveway Monitor - Transmitter. This additional transmitter is for use with the STI-34150 battery operated Wireless Driveway Monitor.
