current consumption max. (no load) 20 mA type through beam sensor sensitivity adjustment potentiometer, 270° voltage drop Vd < 1,8 VDC reverse polarity protection yes voltage supply range +Vs 10 ... 30 VDC front (optics) PC short circuit protection yes output current < 200 mA response time / release time < 1 ms height / length 67 mm emitter / receiver receiver operating temperature -25 ... +55 °C nominal range Sn 20 m output circuit NPN actual range Sb 16 m alignment / soiled lens indicator flashing light indicator manufacter SKU FEAM 18N3150/S14 housing material brass nickel plated / PC current consumption typ. 20 mA light indicator LED yellow output function dark operate connection types connector M12 4 pin width / diameter 18 mm protection class IP 67 type cylindrical threaded