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10Pcs Infrared Reflective Switch Ir Barrier Line Track Sensor TCRT5000 qb

2Pcs KP500B Infrared Sensor Pir Ir Infrared Probe For Arduino Raspberry zs

TCRT5000 Ir Barrier Line Track Sensor Infrared Reflective Photoelectric Switc pp

2Pcs Ir Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler xg

10Pcs 2SD882 D882 882 Npn Silicon Power Transistor Nec TO-126 yh