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

For IR Break Beam Sensor Module 3MM Through Beam Photoelectric Switch for Relay

3MM Infrared Break Beam Sensor Module Through Beam Photoelectric Switch

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

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

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