10 Pcs ST188 Infrared Photoelectric Sensor Switch Kit For Slot PCB Interrupter, High-Accuracy Reflective Optical Sensor With Adjustable 4-13mm Range, Non Contact Detection, Great For Projects And DIY Electronics

10-Pack ST188 Infrared Reflective Sensor Kit for PCB
✔️ Adjustable 4-13 mm (0.16-0.51 in) detection range, 5V DC, 20 mA, reflect sensor

This compact ST188 infrared photoelectric sensor switch kit is designed for non-contact detection of reflective materials at close ranges. It’s ideal for slot PCB interrupters, label reading, paper sensing, and DIY electronics projects.

✅ Model: ST188, 4PIN configuration
✅ Working voltage: DC 5V, current up to 20 mA
✅ Detection distance: 8 mm (0.31 in) for reflective sensing
✅ Sensing method: Reflective; detects opaque objects like paper, cards
✅ Compact 4-pin module for easy PCB integration

💡 What is an infrared reflective sensor used for?

It's handy for quick, non-contact presence detection in small electronics projects.

- Non-contact object sensing for short ranges - Detects opaque materials like paper, cards, or labels - Easy 4-pin DC 5V interface for breadboard or PCB - Useful in slot sensors and line-following setups