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

IR Break Beam Sensor Module 4 Sets 3mm LEDs 25cm Detection Distance DC5V

4 Sets IR Break Beam Sensor Module 5V DC Output Current 70mA Relay Drive

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

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

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