Miniature Incremental Magnetic Encoder Module | RLC2HD encoder - www.rls.si
CDA - Precise magnetic encoders
Amazon.com: MGT010-42ST magnetic encoder for stepper Motor and bushless DC Motor Incremental output DC 5V 1000 PPR (MGT010-42ST 15.533) : Industrial & Scientific
Difference between optical, magnetic and capacitive encoders? | US Digital