Idec SA1E1DP2 Light Push Button- Switching In Darkness SA1E-DP2

The Light push button with background suppression (BGS) is characterized by its particularly small and compact design By the light push button, the reflecting light from the object is detected. Thanks to the integral interference suppression, two devices can be installed side by side. With sensitivity adjustment. Two LEDs (yellow and green) indicate the output state and stability of detection.

Price: 59.99 from Conrad Electronic