Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Voltage	3.3V - 5V DC
Detection Range	0 - 20mm (adjustable)
Output Signal	Digital Switch Output (DO)
Indicator	Power LED and Detection LED
Comparator Chip	LM393
PCB Dimensions	32mm x 14mm x 8mm
Mounting Hole Diameter	3mm
Compatibility	Arduino, STM32, 51 Series, Raspberry Pi
Sensitivity Adjustment	Via On-board Potentiometer
Response Time	< 2ms

6 reviews

Anonymous

Mar 29, 2026

Rating: 4/5

Compact and effective

Small footprint makes it easy to integrate into tight spaces. Detection is accurate for ferrous metals. Just wish the connecting wires were a bit longer, but that's a minor issue.

Anonymous

Mar 28, 2026

Rating: 5/5

Perfect for my robotics project

This sensor works flawlessly with my Arduino Uno. The detection range is consistent, and the sensitivity potentiometer makes it easy to tune for specific metal objects. Great value for the price.

Anonymous

Mar 27, 2026

Rating: 5/5

Reliable non-contact detection

We use these in our makerspace for various automation demos. They are robust and handle repeated use well. The non-contact feature is essential for our conveyor belt sorting prototype.

Anonymous

Mar 19, 2026

Rating: 5/5

Excellent sensitivity control

The ability to fine-tune the detection threshold via the onboard pot is a huge plus. I was able to ignore small screws and only detect larger metal plates. Highly recommended for custom projects.

Anonymous

Mar 06, 2026

Rating: 4/5

Good module, needs calibration

Works well once you spend time calibrating the potentiometer. It detected my copper coins easily but struggled slightly with aluminum foil until I adjusted the sensitivity. Solid build quality.

Anonymous

Mar 04, 2026

Rating: 5/5

Great for learning embedded systems

Bought this for a university project involving STM32. The documentation online is plentiful, and the module itself is very responsive. The LEDs provide clear visual feedback during testing.

5 FAQ

Q: What is the maximum current consumption of this module?

A: The module typically consumes around 10mA to 15mA when active, which is low enough for most battery-powered applications when managed correctly.

Q: Can I use this to detect metal through a plastic container?

A: Yes, since it is a non-contact induction sensor, it can detect metal objects through non-metallic barriers like plastic, wood, or glass, provided the distance remains within the effective detection range.

Q: Can this sensor detect non-ferrous metals like aluminum or copper?

A: Yes, this induction sensor can detect most metals including non-ferrous ones like aluminum and copper, though the detection range may vary slightly depending on the metal type and size.

Q: Does this come with example code for Arduino?

A: While the physical package does not include a printed manual, we provide a link in the product description to a GitHub repository containing sample code and wiring diagrams for Arduino and other platforms.

Q: Is the output voltage compatible with 3.3V logic levels?

A: Absolutely. The module operates on a wide voltage range (3.3V to 5V), and the digital output is compatible with both 3.3V and 5V microcontrollers like STM32 and Arduino.

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