protection class IP 67 voltage supply range +Vs 10 ... 30 VDC output indicator LED yellow current consumption max. (no load) 15 mA output circuit NPN wave length 880 nm type cylindrical width / diameter 30 mm reverse polarity protection yes, Vs to GND output current < 200 mA connection types cable 3 pin, 2 m sensitivity adjustment no height / length 81 mm measurement type contact with medium operating temperature 0 ... +65 °C nominal pressure (probe tip) 10 bar light source pulsed infrared diode output function normally open (NO) type liquid level sensor housing material polysulphone short circuit protection no thread G 3/8" voltage drop Vd < 2 VDC material (sensing device) polysulphone manufacter SKU FFAK 17NTD1001/L