Opcon 137??-6501 Photoelectric Switch is a non-contact optical sensor used to detect the presence or absence of objects in automation tasks. The model is listed as 137??-6501, with two digits unreadable, and the device is described as a photoelectric switch (also labeled as a proximity switch in the listing). Designed for integration with automated control systems, this photoelectric switch provides a switching output when the target is detected, enabling reliable inline monitoring without physical contact.
