Vertical/Straight Rotary Encoder (12mm shaft / 25mm Length)
A simple rotary encoder for all your projects.
It's like a potentiometer, but without end. It sends pulse to your microcontroller to let you know in which direction it turned.
For more information on how to use an encoder, have a look at this good tutorial with arduino :
Actuator Length: 25mm
Detent torque: 3 to 20
Number of detent: 24
Number of pulse: 24
Manufacturer code :EC12E24404A8