10pcs TCRT5000 Infrared Reflective Sensor IR Photoelectric blue,silver,black

ACEIRMC 10pcs TCRT5000 Infrared Reflective Sensor IR blue,silver,black

Ferwooh TCRT5000 Photoelectric Sensors Reflective Optical Sensor with...

HiLetgo 5pcs LM393 Correlation Photoelectric Sensor Opposite-type Infrared...

1 PCS SICK GTB10-P4221 1081296 Photoelectric switch infrared sensor

1 pcs Simaida HPJ-A21 photoelectric switch sensor infrared diffuse reflection