The ALLEN BRADLEY 845H-SJDZ24CNY1 is a discontinued incremental encoder (manufacturer discontinued production on 07/21/2015) featuring a 25 size square flange design with 3/8 inch shaft. It operates at 8-24 VDC unregulated power supply and provides 1000 PPR resolution. The encoder includes DLD 5 VDC RS-422 output and axial connector (end) configuration. Note: Original factory warranty is not applicable, but this unit comes with Radwell's 2-year warranty.