The OPB821Z is a high-quality slotted optical switch designed for precise sensing applications. This versatile device consists of an 890nm emitter and an NPN phototransistor output, ensuring accurate and reliable detection in a wide range of environments. Featuring a slot width of 0.80 and a depth of 0.255, the OPB821Z offers enhanced flexibility in installation and integration. Additionally, it comes with 24/26AWG wires, allowing for straightforward connectivity and ease of use. Whether you need to monitor position, speed, or presence, the OPB821Z is the ideal choice for demanding applications in industrial automation, robotics, and much more. Trust OPTEK TECHNOLOGY to deliver innovative and dependable solutions for your sensing needs.