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