You searched for "diffuse suppression"
RS PRO
RS PRO Diffuse Photoelectric Sensor, Cylindrical Sensor, 40 cm Detection Range
Part: 254-3673
Compact cylindrical diffuse sensor for detecting objects up to 40 centimeters without reflectors.
RS PRO
RS PRO Diffuse Photoelectric Sensor, Cylindrical Sensor, 20 m Detection Range
Part: 254-3710
Infrared diffuse photoelectric sensor for detecting objects up to 20 meters away.
RS PRO
RS PRO Background Supression Photoelectric Sensor, Cylindrical Sensor, 10 cm Detection Range
Part: 254-3712
Intelligent sensor ignoring background objects and detecting foreground items precisely.