MAX471 Voltage and Current Sensor Module (2-in-1)
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Prices updated: 12 Oct 2026
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About this product
A breakout module that combines the MAX471 current-sense amplifier with a resistor divider to measure both voltage and current in a DC circuit. Its analog outputs can be read by an Arduino or any microcontroller ADC, which makes it useful for battery monitoring and power measurement.
Specifications
- Current sensing IC
- MAX471
- Voltage divider ratio
- 5:1
- Minimum operating voltage
- 3V
- Current sense range
- up to 3A
- Analog input compatibility
- Arduino analog input up to 5V
- Power supply
- Powered from the measured circuit, no external supply
Frequently asked questions
Can I connect the outputs directly to an Arduino?
Yes. The outputs are analog and are designed for the Arduino analog input range up to 5V. Connect the grounds of the module and the Arduino together.
Does it need its own power supply?
No. It is powered from the circuit being measured, which must be at least 3V according to the listing.
