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Measure Current, Voltage, or Magnetic Fields with Ease
The LED Voltage Meter Red is an electric current electric potential magnetic sensor module designed for power monitoring, motor feedback, magnetic detection, and control systems. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.
Key details include Measure Voltage: 3.0-30V DC.
Why you’ll love it
- Power range: 3.0-30V DC
- Useful spec: 2 Hz
- Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
- Common controller support: Works well with Arduino, ESP32, Raspberry Pi, and similar boards
- Project-ready sensing: power monitoring, motor feedback, magnetic detection, and control systems
Compare with similar products
| Product | Sensor style | Standout |
|---|---|---|
| LED Voltage Meter Red | electric current electric potential magnetic sensor module | Current item |
| Current 20A Analog Sensor Gravity | electric current electric potential magnetic sensor module with analog output | analog output, hall-effect detection |
| Voltage Current Sensor MAX471 Load Detection | current or power sensor | motion sensing |
| Wattmeter I2C Digital Gravity for Arduino | current or power sensor with I2C | I2C interface, digital output |
What you can build
This sensor is a good fit for current meters, motor drivers, magnetic door sensing, power dashboards, and fault alerts.
Starter bundles
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard or jumper wires for quick setup and testing.
Recommended add-ons
Useful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.
Technical specifications
| Product | LED Voltage Meter Red |
|---|---|
| Measure Voltage | 3.0-30V DC |
| Refresh Rate | 2 Hz |
| Category | electric current electric potential magnetic sensors |
Wiring & usage notes
Check the pin labels on the LED Voltage Meter Red and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.
What’s in the box
1 × LED Voltage Meter Red
Frequently Asked Questions
What does the LED Voltage Meter Red measure?
It is designed to measure voltage level.
Can I use it with Arduino, ESP32, or Raspberry Pi?
Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
What affects accuracy?
Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.
Is it good for prototyping?
Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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