voltage supply range +Vs 10 ... 30 VDC output indicator LED red reverse polarity protection yes material (sensing face) LCP voltage drop Vd < 2 VDC hysteresis 2 ... 20 % of Sr manufacter SKU IFRM 04N37A1/KS35PL housing length 25 mm IFRM 04N37A1/KS35PL dimension 4 mm protection class IP 67 short circuit protection yes switching frequency < 3 kHz current consumption max. (no load) 12 mA nominal sensing distance Sn 1,6 mm mounting type flush housing material stainless steel connection types flylead connector M8 output circuit NPN break function (NC) type cylindrical smooth operating temperature -25 ... +75 °C output current < 100 mA