A
Anonymous
Mar 26, 2026
Rating: 4/5
Good sensitivity
Solid module. Had to adjust the potentiometer slightly for best range.
Description
Metal Detection Module Non-Contact Metal Induction Sensor Compatible with Arduino/STM32/51 MCU
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Detection Range | 0 - 20mm (varies by object) |
| Output Type | Digital Switching (TTL) |
| Working Current | 10mA (Typical) |
| PCB Size | 32mm x 14mm x 14mm |
| Mounting Hole | 3mm Diameter |
| Compatible MCU | Arduino, STM32, 8051, ESP32 |
| Operating Temp | -10°C to 50°C |
| LED Indicator | Power & Detection Status |
| PCB Material | FR-4 Double Sided |
5 reviews
A
Anonymous
Feb 25, 2026
Rating: 5/5
Perfect for robotics
Works flawlessly with Arduino Uno. Consistent detection for small screws.
A
Anonymous
Feb 18, 2026
Rating: 5/5
Reliable sensor
Bought five for a classroom kit. All working perfectly.
A
Anonymous
Jan 25, 2026
Rating: 5/5
Great for learning
Easy to interface. Documentation could be better but plenty of examples online.
A
Anonymous
Jan 24, 2026
Rating: 3/5
Range is limited
Works as described but don't expect long range. Good for close proximity only.
5 FAQ
Q: Is it waterproof?
A: No the PCB is not coated for water resistance.
Q: Works with 3.3V logic?
A: Yes it operates comfortably between 3.3V and 5V.
Q: What is the max distance?
A: Typically up to 20mm for larger metal objects less for small items.
Q: Arduino library needed?
A: No specific library needed it functions as a digital input pin.
Q: Can this detect gold?
A: Yes it detects most metals including gold copper and iron.
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