30A range Current Sensor Module ACS712
Review: 5 - "A masterpiece of literature" by , written on May 4, 20020

30A range Current Sensor Module ACS712

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  • Product SKU: KG134
₹ 139 ₹ 199
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The 30A Range Current Sensor Module ACS712 consists of a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field in which the Hall IC converts into a proportional voltage. The maximum AC or DC that can be detected can reach 30A, and the present current signal can be read via the analog I / O port of Arduino.

This ACS721 current module is based on the ACS712 sensor, which can accurately detect AC or DC current. Sensing and controlling current flow is a fundamental requirement in a wide variety of applications including, over-current protection circuits, battery chargers, switching mode power supplies, digital watt meters, programmable current sources, etc.


    • The low-noise analog signal path
    • Device bandwidth is set via the new FILTER pin
    • 5 µs output rise time in response to step input current
    • Small footprint, low-profile SOIC8 package
    • 2.1 kVRMS minimum isolation voltage from pins 1-4 to pins 5-8
    • 5.0 V, single-supply operation
    • 66 to 185 mV/A output sensitivity
    • Output voltage proportional to AC or DC currents
    • Factory-trimmed for accuracy
    • Extremely stable output offset voltage
    • Nearly zero magnetic hysteresis
    • The ratiometric output from the supply voltage.

      The color of the product may vary. while shipping you may get any one of them.

ACS712 is based on the principle of the Hall test, please use this field to avoid an impact!

Technical Details

  • Current sensor chip : ACS712
  • Operating Voltage (V) : 4.5 ~ 5.5V DC
  • Measure Current Range : -30 ~ +30 A
  • Sensitivity : 100mV/A

Physical Attributes

  • Length × Width × Height(mm) : 31 × 13 × 13.5
  • Weight (gm) : 4

Integration with Arduino

Product Video


Customer Reviews

Based on 6 reviews
suraj kumar
Excellent product and very good seller exact product information

Excellent product and very good seller exact product information

Pain in the neck to work with...

A powerful stabilizer algorithm is needed as the numbers jump all over the place, just as sloppy measuring DC as well as AC.

swati thakur
Great product.

I'm pleased. I needed to measure about 20 Amps, both AC and DC. I needed the sensor to be isolated from the circuit. These little Hall Effect sensors worked perfectly for my needs.

vanish khan
sensors work gang busters, No problems, interface to ...

sensors work gang busters, No problems, interface to ad converter was 10k resistor and .01uf cap parallel to ground to help control noise, no problems slicker than owl snot.

ravi shankar
Works good, but the precision isn't as good as I ...

Works good, but the precision isn't as good as I had hoped with reading with an Arduino. I can only get 12 bit precision when measuring the voltage, which is several hundred milliamps per division. If you need precise measurements, you need a different device.


fast shipping. Nice products