Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Sensor Model | ACS712 / ACS724 |
| Current Range Options | 5A / 20A / 30A |
| Supply Voltage | 5V DC |
| Zero Current Output | VCC / 2 (2.5V) |
| Sensitivity (5A Version) | 185mV/A |
| Sensitivity (20A Version) | 100mV/A |
| Sensitivity (30A Version) | 66mV/A |
| Bandwidth | 80kHz |
| Isolation Voltage | 2.1kV RMS |
| Operating Temperature | -40°C to 85°C |
Anonymous
Mar 30, 2026
Rating: 5/5
Great for Learning
Used this for my university project on power consumption. Easy to interface and there is plenty of documentation online.
Anonymous
Mar 17, 2026
Rating: 5/5
Accurate and Reliable
Tested against a multimeter and readings were within 2% margin. Happy with the purchase and build quality.
Anonymous
Mar 07, 2026
Rating: 4/5
Does the job
Packaging was secure. Module works as described. Wish it came with screw terminals instead of header pins for high current.
Anonymous
Mar 03, 2026
Rating: 4/5
Good value, slight noise
Solid module for the price. Noticed some noise at very low currents but acceptable for general monitoring purposes.
Anonymous
Jan 18, 2026
Rating: 5/5
Perfect for Arduino Energy Monitor
Works flawlessly with my ESP32 project. Calibration was easy using the provided formula and the readings are stable.
Q: Does it support 3.3V microcontrollers?
A: Yes, but the output sensitivity is based on 5V logic. Level shifting or careful ADC scaling may be needed for 3.3V boards.
Q: Can this measure AC current?
A: Yes, the ACS712 and ACS724 chips are capable of measuring both AC and DC current effectively.
Q: Is there a library for this?
A: Many open-source libraries exist for Arduino and PlatformIO to simplify reading and calibrating the sensor data.
Q: Is the output 0-5V or centered?
A: The output is centered at VCC/2 (approximately 2.5V) when there is zero current flowing through the sensor.
Q: What wire gauge fits the terminals?
A: The screw terminals on the board can accommodate wires up to 12AWG comfortably for safe current transmission.
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