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

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

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

IR Break Beam Sensor Counting Module For Security Systems Compact Design

DC5V IR Break Beam Sensor Module 4 Pairs 25cm Detection for Microcontroller

IR Break Beam Switch Module 4 Pairs 25cm Range for Door Opener or Alarm

4 Pair IR Break Beam Sensor Module with Built-in Voltage Regulation 5V

IR Break Beam Sensor Set 4 Pairs 5V DC Photoelectric Switch for DIY Projects