100% Non-contacting design (no bearings or bushing) provides an extremely long life expectancy and is tolerant to harsh environments. Mounting holes for 2-bolt pattern (1.00 in B.C x .120 inch O.D.) Target magnet for standard shaft sizes from 2 mm to 3/8 inch. Custom bore size available. Options for 2, 3, 4, 5, 6, 8, and 12 pulse per channel per revolution. Customizable lead wires, cables, and or connectors. S4 Datasheet Enquire Now