output function dark operate actual range Sb 3,2 m protection class IP 67 output current < 200 mA light source pulsed red LED alignment / soiled lens indicator flashing light indicator voltage drop Vd < 1,8 VDC wave length 660 nm current consumption max. (no load) 35 mA housing material brass nickel plated / PC width / diameter 18 mm nominal range Sn 4 m reverse polarity protection yes manufacter SKU FPAM 18P3151/S14 suppression of reciprocal influence yes connection types connector M12 4 pin sensitivity adjustment no current consumption typ. 22 mA voltage supply range +Vs 10 ... 30 VDC response time / release time < 1 ms output circuit PNP polarization filter yes light indicator LED yellow type retro-reflective sensor type cylindrical threaded height / length 67 mm front (optics) PMMA short circuit protection yes operating temperature -25 ... +55 °C