The rotary encoder can count the number of pulse output during rotation in the positive direction and reverse direction through the rotation and this rotation counts are not . With the key on the rotary encoder, you can reset to the , that is, counting from 0. Beautiful appearance and sturdy, durable material. Easy to install and carry, small size and portable. Features - Color: Black. - Material: Power module. - Size: 3.00 x 3.00 x 2.00cm/ 1.18 x 1.18 x 0.79 inch. - In the forward rotation, the A line phase leads phase. - When reversed, phase leads the A line phase. - relationship and number of rotations of AB can be identified using a simple circuit. - Unlike rotary potentiometer count, this rotation counts are not . - With the button on the rotary encoder can be reset to . Package list: 5 x rotary encoder modules