Baumer FHDM 16N5001/S14 Diffuse Sensor with Background Suppression (BGS), Pulsed Red LED, 10-30VDC, 20-450mm Sensing Distance Tw, Mechanical 5-Turn, NPN, Light/Dark Operate, M12 4-Pin Connector, -25 to 65°C, IP67 $479.00 Select