protection class IP 67 housing material POM current consumption max. (no load) 12 mA detection of non-conductive media no nominal sensing distance Sn 0,1 mm fill level detection through container no object detection / bulk goods no switching frequency < 15 Hz special type liquid level sensor for wastewater short circuit protection yes manufacter SKU CFAK 12N1140/KS35L operating temperature 0 ... +50 °C temperature drift ± 20 % type cylindrical threaded liquids in direct contact yes reverse polarity protection yes output circuit NPN make function (NO) output indicator LED yellow GND electrode no connection types flylead connector M8, L=200 mm measurement type contact with medium sensitivity adjustment no voltage supply range +Vs 10 ... 30 VDC CFAK 12N1140/KS35L dimension 12 mm material (screw nut) POM mounting type non-flush voltage drop Vd < 2,5 VDC housing length 39,5 mm material (gasket) EPDM50 output current < 200 mA