Universal thru-beam sensor, large housing design, 300 m detection range, red laser light, laser class 2, 25 kHz transmission frequency, light/dark on, DC version, push-pull output, test input, pre-fault output, M12 plug, Universal series with highly versatile fields of use, Resistant against noise: reliable operation under all conditions, Highly visible LED as alignment aid in receiver optics, Emitter with test input, Laser version for long ranges