The OPL820 is a highly reliable and robust Photologic® Sensor by OPTEK TECHNOLOGY. It features an open collector output and a 10Kohm pull-up resistor, allowing for easy interface with various electronic systems. Encased in a hermetic TO-8 package, this sensor offers enhanced protection against environmental factors, ensuring long-lasting performance even in challenging conditions. Ideal for applications that require reliable optical sensing, the OPL820 excels in industrial environments, automation systems, and other demanding settings.