voltage drop Vd < 2 VDC output indicator LED red material (sensing face) LCP switching frequency < 3 kHz type cylindrical smooth output circuit PNP break function (NC) IFRM 04P37A3/KS35PL dimension 4 mm connection types flylead connector M8 housing material stainless steel hysteresis 2 ... 20 % of Sr reverse polarity protection yes manufacter SKU IFRM 04P37A3/KS35PL nominal sensing distance Sn 1,6 mm voltage supply range +Vs 10 ... 30 VDC current consumption max. (no load) 12 mA operating temperature -25 ... +75 °C short circuit protection yes housing length 20 mm protection class IP 67 output current < 100 mA mounting type flush