4 Pack IR Break Beam Sensor 3mm LED Pair Set for Object Detection

4 Pairs IR Break Beam Sensor 3mm LED Counting Photoelectric Switch

4 Pairs IR Break Beam Sensor with 3mm LED Transmitter Receiver Unit

4 Pairs IR Beam Sensor with 3mm LEDs for Automation and Security

4 Pairs IR Break Beam Sensor 3MM LEDs Counting Photoelectric Switch New