Baumer O500.TR-ZZZZ.72CU Through Beam Sensor, Emitter, 10-30VDC, 25m Actual Range Sb, 40m Nominal Range, Pulsed Red LED, 645 nm, 2m 4-Pin Cable, Plastic Housing, PMMA Front (Optics), 45 x 18 x 32mm (HWD), -25 to 60°C Operating Temperature, IP67 $99.00 Select