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Q. What is an STU?

A. An STU is a Satellite Transmission Unit, and may also be referred to as a form of RTU (Remote Transmission Unit). In Mag Guard’s magazine monitoring application, the STU is mounted on the explosives magazine or storage facility where it will transmit signals as required. The STU has a built in GPS locator, a vibration/motion monitor, and 4 I/O (in/out) ports to accept a variety of sensors for various applications. Each STU has a unique ESN (electronic serial number) which the file servers and software programs use to tell which unit is sending a particular data package (message). This STU and the magnetic door sensor are rated for Class 1 Division 2 (use in hazardous environments).