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

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

3MM Infrared Break Beam Sensor Module Through Beam Photoelectric Switch

5PCS For IR Break Beam Sensor Module 35mm Photoelectric Switch with NPN Output

IR Break Beam Sensor, 5MM LEDs, Counting Module, Split Through-Beam, Switch

Infrared Break Beam Sensor 3MM Module Designed for Flexible Microcontroller Use

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

5PCS For IR Break Beam Sensor Module 35mm Photoelectric Switch for Relay Use