The BCS M30B4E2-PSC25H-S04K is a two-axis proximity sensor from Balluff. It is designed for single and dual position detection in metal and non-metallic cylinders and tubes. The device features 2 axis detection, adjustable sensitivity and hysteresis, lightning protection of up to 12kV, and a sensing range of 25mm. It is also IP67 rated for protection from dust and moisture and has an operating temperature range from -25 °C to +70 °C. The device is suitable for controlling a variety of machinery and processes, such as valves, actuators, and motors.