A
Anonymous
Apr 13, 2026
Rating: 5/5
Great for Arduino Projects
Used this for a motor speed counter. Very stable readings and easy to wire up.
Description
Through-Beam Photoelectric Sensor and Infrared Counter – 22 Years of Component Expertise
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Output Type | Digital TTL |
| Slot Width | 5mm |
| Response Time | < 10 microseconds |
| Working Current | 15mA (typical) |
| LED Indicators | Power and Signal Status |
| PCB Size | 32mm x 14mm x 5mm |
| Mounting Hole | 3mm Diameter |
| Interface | 3-Pin Header (VCC, GND, OUT) |
| Application | Object Counting, Speed Measurement |
5 reviews
A
Anonymous
Feb 24, 2026
Rating: 5/5
Exactly as described
Shipping was fast and the module works exactly as specified in the datasheet.
A
Anonymous
Feb 17, 2026
Rating: 4/5
Good sensor, tight slot
Works well but make sure your object fits the 5mm slot. Otherwise performance is solid.
A
Anonymous
Feb 04, 2026
Rating: 5/5
Professional Quality
Clean signal output with no noise. The LEDs are bright enough to see status clearly.
A
Anonymous
Jan 20, 2026
Rating: 5/5
Responsive and Accurate
The detection is instant. I tested it with a spinning disk and it counted every slot perfectly.
5 FAQ
Q: What is the lifespan of the IR LED?
A: Under normal operating conditions, the component is rated for over 50,000 hours.
Q: Can I power this with 9V battery?
A: No, the maximum voltage is 5V. Using 9V may damage the module.
Q: Does the output pull up or down?
A: The output is typically high and goes low when the beam is interrupted.
Q: Is this compatible with Raspberry Pi GPIO?
A: Yes, as long as you configure the GPIO for 3.3V logic input.
Q: What happens if sunlight hits the sensor?
A: Direct sunlight may interfere with the infrared beam. We recommend shielding it for outdoor use.
