★Working voltage: 5V; One round number of pulse: 20
★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 limited
★With the key on the rotary encoder, you can reset to the initial state, that is, counting from 0
★The Material of Knob Cap: aluminium alloy;The Specification of Knob Cap: diameter: 15mm/ 0.59in; height: 16.5mm/ 0.65in
★Package content: 10pcs x Rotary Encoder Module,10pcs black Knob .