Operating voltage: 5 V, number of pulses per revolution: 20.
The encoder can be rotated to count the number of pulses output during forward and reverse rotation, and there is no limit to the number of such rotations. Pressing the button on the encoder resets the encoder to its initial state, i.e., counting from 0.
You can not only rotate the encoder, but also press the encoder. This gives you more options.
An incremental encoder is a rotary encoder that converts rotary motion into a series of digital pulse signals. These pulses are used to control the angular displacement.