Features: Supporting continuous rotation, it is able to realize 360 degrees rotation, suitable for various application scenario. High-precisions encoding can accurately detect the rotation and direction to ensure the reliability of the data. Strong compatibility:Compatibles potentiometers, easy to connection with a variety of development boards to simplifies the integration process. Simple Installation: Small size design of the module facilitates quick installation and use in various projects without complicated wiring or additional configuration. Stable Output: The use electronic components ensures signal stability, reduces interferences and improves overall system performances. Specifications: Size: about 26x19x26mm/1.02x0.75x1.02in Working voltages: 5V Number of pulses in 1 circle: 20 Quantity: 5/10pcs/10pcs Package Includes: 5/10Pcs/10pcs Rotary encoding Module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution