Dope High Sensitivity IR Break Beam Sensor With 3mm LED Indicators Counting Module Split Through Beam Photoelectric Switch 80cm Projection Distance NPN Normally Open Output 2ms Response 3 To 5 Volt DC Arduino Friendly Motion Detector

High-Sensitivity IR Break Beam Sensor with 80cm Range
✔️ NPN normally open output, 2ms response, 3-5V DC, Arduino-ready (pack of 2)

The compact through-beam IR sensor module detects interruptions in an infrared beam across up to 80 cm. It’s ideal for counting, motion sensing, and triggering control logic in robotics, automation, and smart devices.

✅ Detection distance: 80 cm (31.5 in) straight beam
✅ Output: NPN normally open, 3-5 V DC, 20 mA launch current
✅ Wiring: Transmitter red=VCC, black=GND; Receiver red=VCC, black=GND, white=OUT
✅ Package includes two units: transmitter and receiver (2-pack)
✅ Compatible with Arduino, STM32, PLCs, LEGO, Fischertechnik, and more
✅ Fast 2 ms response for precise timing in robotics and automation

💡 What is a handy through-beam infrared sensor used for in automation setups?

Handy for fast, reliable interruption detection in conveyors, robotics, and counting systems. - Used to count items or detect object presence on a moving path
- Provides quick 2 ms response and simple wiring with NPN output
- Works with common controllers like Arduino, STM32, PLCs
- Ideal for integration in smart devices, cabinets, relays, and embedded systems