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

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

3MM For IR Break Beam Sensor Module With Through Beam Photoelectric Switch

IR Beam Sensor Module 4 Pair Set Compact Design for Tight Space Installation

5Pcs For IR Break Beam Sensor Module Compatible with Robotics Projects

5Pcs For IR Break Beam Sensor LEDs Counting Module Split Distance Sensor / New