In the retro-reflective mode, a light path is established between the sensor and a special reflector. A target is detected when it breaks the light beam. Typical retro-reflective sensors provide a longer sensing range when compared to diffused sensors. In some units a visible red LED is used which aids in the installation and alignment of the reflector. A corner cube reflector is employed to accurately return the light energy, on a parallel axis, into the receiver.
Sensing mode : retroreflective
Housing : rectangular, cylindrical
Type of beam : infrared, laser, red light
Other characteristics : long-range
Maximum range : 50 m (164’00”)
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