hysteresis 2 ... 20 % of Sr short circuit protection yes protection class IP 68/67 (sensing face/sensor) housing length 46 mm output indicator 3 port LED red nominal sensing distance Sn 2 mm IFRD 06P37A1/S35L dimension 6,5 mm voltage drop Vd < 2 VDC operating temperature -25 ... +75 °C pressure static < 20 bar current consumption max. (no load) 20 mA reverse polarity protection yes output current < 200 mA material (sensing face) stainless steel 1.4404 (V4A) switching frequency < 150 Hz connection types connector M8 output circuit PNP break function (NC) housing material stainless steel 1.4404 (V4A) manufacter SKU IFRD 06P37A1/S35L type cylindrical smooth mounting type quasi-flush voltage supply range +Vs 10 ... 30 VDC special type full metal housing ( DuroProx )