switching frequency < 5 kHz IARM 12N15A3/S35L dimension 12 mm protection class IP 67 voltage supply range +Vs 10 ... 30 VDC hysteresis 3 ... 25 % of Sr type cylindrical threaded housing length 56,3 mm real sensing distance Sr 1,0 ... 1,3 mm operating temperature -25 ... +75 °C reverse polarity protection yes output circuit NPN make function (NO) current consumption max. (no load) 12 mA special type with banking screw output current < 200 mA short circuit protection yes material (sensing face) PBT housing material steel / hardened steel voltage drop Vd < 2 VDC manufacter SKU IARM 12N15A3/S35L temperature drift ± 10 % of Sr (-25 ... +50 °C) - 10 % ... +20 % of Sr (-25 ... +75 °C) nominal sensing distance Sn 1,2 mm output indicator 3 port LED red mounting type flush connection types connector M8