Features: The HC020K double Speed Measurement sensors Module with Photoelectric encoders set delivers precise data feedbacks across variable speeds, overcoming traditional single speed sensors limitations through its advanced double channel detection systems. Featuring integrated photoelectric encoders and durability construction, this industrial grade module ensures stable signals transmission with enhanced antiinterference capabilities for reliability performances in demanding environment. Designed for engineers, automation specialists, and electronics developers requiring high precise instrumentation in industrial controller systems and prototyping applications. Ideal for integration into machinery, robotics calibration setups, and laboratory measurement equipment where speed variance analysis and signals integrity are critical. Its plug and play compatibility with mainstream systems simplifies installation. Specifications: Component: PCB Module working voltages: 4.5-5.5V Transmitter pressure drop: Vf=1.6V Emitter tube current: if <20mA Resolution: 0.01mm Measurement frequency: 100KHz Disk diameter: 24mm Inner disk diameter: 4mm encoders resolution: 20line speed sensors configuration: measure the speed of line 1 motor Package Includes: 1pc HC020K Double Speed Measuring Sensors Module note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.