4 Pack Dope Infrared Break Beam Sensor Set With Through Beam Photoelectric Switch, 5V Operation, 25cm Cable, 80cm Test Distance, NPN Normally Open Output, 5mm LED Indicators, High Speed Precise Non Contact Sensing

Four-pack infrared through-beam sensor for quick detection
✔️ 4-pack, 5V operation, 25cm cable, 80cm test distance, NPN normally open

This four-sensor set uses infrared through-beam technology to detect object passage without contact. Ideal for automation projects, printers, CNCs, and small assembly lines where fast, reliable counting or safety interlocks are needed.

✅ Operating voltage: DC 3-5V
✅ Detection distance: up to 1 m
✅ Output: NPN normally open
✅ Cable length: 25 cm
✅ Pack includes 4 sensors (2 transmitters, 2 receivers)

💡 What is a through-beam infrared sensor used for in DIY automation and industrial settings? This handy non-contact sensor is used for counting, positioning, and safety interlocks.
- through-beam infrared sensor for non-contact detection
- ideal for automation projects, conveyors, and safety interlocks
- compatible with hobbyist boards and PLCs
- provides fast response times and long service life