short circuit protection yes switching frequency < 3 kHz voltage drop Vd < 2 VDC material (sensing face) POM reverse polarity protection yes mounting type flush manufacter SKU IFRM 03N1501/L protection class IP 67 IFRM 03N1501/L dimension 3 mm nominal sensing distance Sn 0,8 mm type cylindrical smooth operating temperature -25 ... +75 °C connection types cable, 2 m output indicator LED red output circuit NPN make function (NO) output current < 100 mA housing material stainless steel current consumption max. (no load) 12 mA hysteresis 2 ... 20 % of Sr housing length 22 mm voltage supply range +Vs 10 ... 30 VDC