Product: Infrared slotted optical speed-measuring sensor detection optocoupler module (pack of 20) Why this product matters Accurate speed sensing: The infrared slotted optical design produces clean, repeatable pulse signals for reliable speed measurement. Ready quantity: Pack of 20 provides parts for multi-unit builds, prototypes, maintenance spares, or classroom/lab projects. Dependable detection: Designed as a detection optocoupler module, it offers consistent on/off switching for counting and timing applications. Key features Function: Slotted optical speed-measuring sensor that outputs detection pulses when an object interrupts the infrared beam. Technology: Infrared emitter and photodetector arranged in a slotted optocoupler configuration for optical speed/position sensing. Quantity: Sold as a set of 20 identical modules. Performance: Optimized for reliable pulse generation to support accurate RPM, speed, and position measurement. Form factor: Compact slotted module suitable for integration into assemblies where a slotted optocoupler is required. How it solves problems Simplifies sensing: Converts mechanical interruptions into clean electrical pulses you can count or time, avoiding more complex encoder systems when a slotted sensor is sufficient. Saves time and cost: Multiple modules in one pack reduce procurement cycles and spare-part shortages for projects and repairs. Improves reliability: Optical detection reduces mechanical wear and provides consistent switching behavior for monitoring rotating or reciprocating parts. Typical applications Motor speed monitoring and basic tachometer implementations for DC or stepper motors. Robotics and wheeled platforms for wheel speed or simple position sensing. Conveyor, feeder, or automation systems to detect shaft rotation or passing objects for throughput and speed control. Integration notes Intended as a detection optocoupler; integrate into controllers or counting electronics that accept standard pulse or switch-style inputs. The infrared slotted design requires a physical interrupting element (e.g., tab, vane, or wheel) to generate pulses. Package contents 20 infrared slotted optical speed measuring sensor detection optocoupler modules. Reliable, straightforward optical sensing in quantity for projects, repairs, and production runs where consistent pulse-based speed or position feedback is needed.