Encoder disc made from acrylic with a thickness of +/- 3 mm is cut using a laser cutting system that ensures every piece is neat and precise in every piece. This disc encoder has 20 holes that will be used by the optocoupler speed sensor module (sold separately) to calculate the speed of a DC motor or other moving object.

Specifications
- Diameter: +/- 26mm
- Middle hole: 5.5mm x 3.5mm
- Thickness: 3mm
- Material: Acrylic black
- Number of holes: 20