The SM Switch MHD-06 with ROHS-compliant Plug-in Rotary Encoders is a durable and rugged device designed to provide reliable electronic data input in a variety of applications. The MHD-06 features a 6 Pin Rotary Encoder which enables users to manually adjust settings and program parameters. The MHD-06’s Plug-in Rotary Encoder is also RoHS compliant, meaning that it is free of hazardous materials and substances, such as lead, cadmium, mercury, and certain other toxic substances. This extended the lifespan of the product and helps to avoid long-term health risks. Additionally, the MHD-06 is designed to withstand tough environmental conditions, including temperature, humidity, and corrosive elements. It also offers enhanced durability, allowing for long-lasting and reliable functionality.