847H-FG2A-RG01024 - Incremental Encoder, Bell Housing and Coupler, 3/8 inch Bore Bellows Coupler (High Performance), 4.5-5.5 Volt Line Driver,TTL (B-Leads-A, CW, Z gated with BN), MS Connector, 10-Pin with mating connector, 1024 Pulses per Revolution.