Magnet: D (Built-in), Mounting: A [Double End Tapped [ø32 - ø50]], Bore Size: Ø32 mm, Port Thread: TN [NPT (ø32-ø100)], Stroke: 45 mm, Auto Switch: M9PV--Solid State, Gen. Purpose, 3 Wire PNP, Vertical, Lead Wire or Prewired Connector: 0.5 m (Or None in the Case of No Switch), Number: 4 pcs.