Wiring detectors with light indication

Light indication

— the presence in the device of a light indicator — a pointer that gives a light signal when an object is detected in the depth of the "viewed" material. In addition, the light indicator can also work “at idle” — notifying that the device is turned on, in good working order and ready for operation. Detection signaling can be carried out by turning the indicator on and off, changing its colour or blinking frequency; such an indication is often more convenient and noticeable than the display readings. In fact, light signs are often combined with displays: the indicator provides the most basic notifications, and the screen displays more detailed information.