ACS712 Hall-Effect Current Sensor (5A/20A/30A)
—The ACS712 is a Hall-effect current sensor that measures DC or AC current without breaking into the signal ground, giving an analogue voltage proportional to current.
Specifications
- Available in 5A, 20A and 30A versions
- Measures AC and DC
- Galvanically isolated from the measured circuit
- Analogue voltage output centred on half supply
- 5V supply
- Roughly 66-185 mV/A depending on version
What you can build with the ACS712 Hall-Effect Current Sensor (5A/20A/30A)
- Motor and pump current monitoring
- Battery charge and discharge logging
- Detecting a stalled or jammed motor
- Appliance load sensing on DC circuits
Compatibility
Works with Arduino, ESP32 and Pico via analogue input; a Pi needs an external ADC. For precise low-current DC measurement the INA219 is better; the ACS712 wins on higher currents and isolation.
Shipping
Dispatched from New Zealand with courier delivery nationwide, including rural addresses. Prices are in New Zealand dollars.
Availability: Sold out
The ACS712 is a Hall-effect current sensor that measures DC or AC current without breaking into the signal ground, giving an analogue voltage proportional to current.
Specifications
- Available in 5A, 20A and 30A versions
- Measures AC and DC
- Galvanically isolated from the measured circuit
- Analogue voltage output centred on half supply
- 5V supply
- Roughly 66-185 mV/A depending on version
What you can build with the ACS712 Hall-Effect Current Sensor (5A/20A/30A)
- Motor and pump current monitoring
- Battery charge and discharge logging
- Detecting a stalled or jammed motor
- Appliance load sensing on DC circuits
Compatibility
Works with Arduino, ESP32 and Pico via analogue input; a Pi needs an external ADC. For precise low-current DC measurement the INA219 is better; the ACS712 wins on higher currents and isolation.
Shipping
Dispatched from New Zealand with courier delivery nationwide, including rural addresses. Prices are in New Zealand dollars.