Final answer:
The GND PROX switchlight is an electronic device used for proximity sensing. It is often used in industrial applications to detect the presence or absence of an object within a certain range.
Step-by-step explanation:
The GND PROX switchlight is an electronic device used for proximity sensing. It is often used in industrial applications to detect the presence or absence of an object within a certain range. The switchlight operates by emitting a signal, usually an infrared or ultrasonic signal, and then measuring the time it takes for the signal to bounce back.