Red Lion Controls ZFG0001C Single Shaft Length Sensor, 1 PPR, 3/8"Dia., 6000RPM, Single Channel, ZFG Series Overview Features: 1 PPR Rugged Aluminum Housing Sealed Ball Bearings 3/8" Dia. Stainless Steel Shaft Maximum Speed 6000 RPM Single Channel, NPN OC Output 10 Foot 3 Wire Cable 8 to 35 VDC Power Mounting Hinge Clamp and Wheels Available Separately