360 degrees rotary encoder module replace the broken one easily, and provide good compatible withoperation. With the buttons on the rotary encoder can be reset to its initial state, that starts counting from 0. These pulses are used to control compatible withangular displacement. Working voltage: 5V; One round number of pulse: 20. compatible withOperation: incremental encoder is a displacement of the rotary pulse signal is converted to a series of digital rotary sensors. By rotating the rotary encoder can be counted in the positive direction and the reverse direction during rotation of the output pulse frequency, unlike rotary potentiometer counter, which species rotation counts are not compatible withlimited. Specification: Material: metal. Color: show as pictures. Size: 31*19*29mm. Operating Voltage: 5V. Circle pulse count: 20. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight error due to different hand measurement. Package included: 1 * KY-040 Rotary Encoder Module.