The ALLEN BRADLEY 845H-SJHZ14CMY2C is an incremental encoder with a 3/8 inch shaft, operating at 5 V DC. It features a DLD 5V DC RS-422 interface, 500 PPR resolution, and a radial connector (side) with mating connector. This model (Bulletin 845H) was discontinued by the manufacturer on 07/21/2015. Note: Original factory warranty does not apply, but it comes with Radwell's 2-year warranty.