These IP69K-rated self-contained through-beam sensors are designed for challenging environments. They incorporate a 316L stainless steel housing that can withstand aggressive cleaning solutions, coolants and lubricants. Available in 50- and 80-mm widths, these sensors feature normally open and normally closed outputs to solve most applications and allow for easy integration into control schemes. Powerful infrared light sources solve applications with mist and other airborne particulates, and red light allows for alignment in general applications. LEDs for power and switching indication in the connector allow for troubleshooting and sensor status.