Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Type	Diffuse Reflective Photoelectric
Output Configuration	NPN Normally Open
Operating Voltage	DC 5V
Detection Range	3cm to 80cm (Adjustable)
Response Time	≤ 2ms
Light Source	Infrared LED
Indicator LED	Green (Power), Red (Signal)
Potentiometer	Multi-turn for sensitivity adjustment
Mounting Hole Diameter	4mm
Application	Robotics, Obstacle Avoidance, Counting

6 reviews

Anonymous

Mar 18, 2026

Rating: 3/5

Struggles with dark objects

Works great on white or light-colored surfaces, but struggles to detect black matte objects even at close range. Expected behavior for IR sensors, but worth noting.

Anonymous

Mar 15, 2026

Rating: 5/5

Easy to wire and use

As a beginner, I found the three-pin layout very easy to understand. VCC, GND, and OUT. The LEDs make debugging super simple.

Anonymous

Mar 03, 2026

Rating: 5/5

Perfect for my Arduino robot

This sensor works flawlessly with my 5V Arduino setup. The detection range is adjustable and very stable. I used it for obstacle avoidance and it reacts instantly.

Anonymous

Mar 02, 2026

Rating: 4/5

Solid performance for automation

Using these in a conveyor belt counting system. They have been running 24/7 for two weeks without failure. Response time is quick enough for moderate speeds.

Anonymous

Mar 01, 2026

Rating: 4/5

Good value but needs calibration

Works well once you spend time tuning the potentiometer. Out of the box, it was a bit sensitive, but after adjustment, it detects objects consistently up to 60cm.

Anonymous

Mar 01, 2026

Rating: 5/5

Reliable NPN output

Exactly what I needed for my PLC interface. The NPN output sinks current correctly, and the build quality feels solid for the price point.

5 FAQ

Q: Is the detection range fixed or adjustable?

A: The detection range is fully adjustable from approximately 3cm up to 80cm using the multi-turn potentiometer located on the back of the module.

Q: Can I connect multiple sensors to one analog pin?

A: This sensor provides a digital output (High/Low). If you need to connect multiple sensors, each should be connected to a separate digital input pin on your microcontroller unless you use a multiplexer.

Q: Does sunlight interfere with the sensor's operation?

A: Strong direct sunlight contains infrared radiation that can interfere with the sensor. For outdoor use, we recommend adding a shading tube or housing to block ambient light from hitting the receiver directly.

Q: Can this sensor operate directly with a 3.3V microcontroller?

A: This module is designed for 5V operation. While the output signal might be readable by a 3.3V logic pin, we recommend using a voltage regulator or level shifter for stable 5V power supply to ensure accurate detection range.

Q: What is the maximum current this sensor can switch?

A: The NPN output transistor can typically sink up to 100mA. However, for driving heavy loads like motors or bright lamps, we strongly suggest using an external relay or MOSFET driver circuit.

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