360 Degree Rotary Encoder Code Switch Digital Potentiometer 5 Pins 14.3mm D-Shaft 10 pcs

Description:

A rotary encoder, also called a shaft encoder, is an electro-mechanical device that converts the angular position or motion of a shaft or axle to digital output signals.

Rotary encoders are used in a wide range of applications that require monitoring or control, or both, of mechanical systems, including industrial controls, robotics, photographic lenses, computer input devices .

Note: 

Avoid storing the products in a place at high temperature, high humidity. 

Do not touch the product with water.