AutomationDirect’s M-series cylindrical magnetic DC proximity sensors are now available in 8mm, 12 mm, and 18 mm sizes. With 10 models available, the magnetic sensors feature stainless steel shielded housings, are offered as NPN or PNP models with normally-open or normally-closed outputs, and are available with standard sensing distances of 0 to 70 mm. M-series sensors are IP65/IP67 or IP68/IP69K-rated and come with built-in overload protection.