voltage drop Vd < 2 VDC manufacter SKU IFRD 06N37A1/S35L housing material stainless steel 1.4404 (V4A) IFRD 06N37A1/S35L dimension 6,5 mm protection class IP 68/67 (sensing face/sensor) mounting type quasi-flush short circuit protection yes nominal sensing distance Sn 2 mm output circuit NPN break function (NC) hysteresis 2 ... 20 % of Sr current consumption max. (no load) 20 mA special type full metal housing ( DuroProx ) connection types connector M8 output indicator 3 port LED red voltage supply range +Vs 10 ... 30 VDC reverse polarity protection yes output current < 200 mA operating temperature -25 ... +75 °C type cylindrical smooth switching frequency < 150 Hz pressure static < 20 bar housing length 46 mm material (sensing face) stainless steel 1.4404 (V4A)