[EricH]

Originally Posted by pheNIX637

What is a Enocder sensor ?

all i know basically is that it counts the teethes on the gear which helps accurately judge how far (distance) it goes per the rotation.

Do you want encoder or gear tooth sensor? A gear tooth sensor counts gear teeth outside of it (say on the sprocket half an inch away) using a magnetic field, but an encoder, as far as I know, counts how many times its own shaft rotates (oh wait, that's a potentiometer...or is it?) using something similar.