The SM3 is a single device that can be used throughout a wellsite, processing facility, or refinery. It is the size of shoe box with a self-contained battery and solar panel – there is nothing else like it on the market. It is rated by Underwriters Laboratories (UL) to operate in explosive areas. It significantly lowers installation and maintenance costs. With various instrument connections, the SM3 can be programmed to handle other opportunities without redesign.