Below you will find brief information for Controller tSG-3781B, Controller tSG-3781L. This guide provides essential instructions on how to use the controllers. It details the package contents, including either the tSG-3781B or tSG-3781L controller and a quick start guide. The document also explains how to modify the PWM frequency using the provided buttons for Up, Down, and Set functions. It also includes resources on where to find technical support and further documentation on the ICP DAS website. The guide briefly touches on both mobile and desktop web access to resources.