---
product_id: 99382891
title: "Current Sensor Breakout - ACS723 - Moderate AC and DC Current Sensing Applications - Base Sensitivity of 400mV/A - Full Electrical Isolation of Measured and sensed Circuits"
brand: "sparkfun"
price: "KD 7.47"
currency: KWD
in_stock: true
reviews_count: 3
url: https://www.desertcart.com.kw/products/99382891-current-sensor-breakout-acs723-moderate-ac-and-dc-current-sensing
store_origin: KW
region: Kuwait
---

# 5A max current 400mV/A sensitivity Full electrical isolation Current Sensor Breakout - ACS723 - Moderate AC and DC Current Sensing Applications - Base Sensitivity of 400mV/A - Full Electrical Isolation of Measured and sensed Circuits

**Brand:** sparkfun
**Price:** KD 7.47
**Availability:** ✅ In Stock

## Summary

> ⚙️ Power Your Projects with Precision!

## Quick Answers

- **What is this?** Current Sensor Breakout - ACS723 - Moderate AC and DC Current Sensing Applications - Base Sensitivity of 400mV/A - Full Electrical Isolation of Measured and sensed Circuits by sparkfun
- **How much does it cost?** KD 7.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/99382891-current-sensor-breakout-acs723-moderate-ac-and-dc-current-sensing)

## Best For

- sparkfun enthusiasts

## Why This Product

- Trusted sparkfun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Enjoy peace of mind with full electrical isolation between circuits.
- • **Smart Engineering:** Designed for resourceful engineers, allowing for power dissipation management.
- • **High-Frequency Output:** Adjustable analog output supports frequencies up to 80kHz.
- • **Precision Performance:** Experience unmatched accuracy with a base sensitivity of 400mV/A.
- • **Versatile Compatibility:** Seamlessly integrates with both AC and DC applications up to 5A.

## Overview

The SparkFun Current Sensor Breakout utilizes the ACS723 for accurate AC and DC current sensing, featuring a base sensitivity of 400mV/A, full electrical isolation, and compatibility with currents up to 5A. Ideal for engineers looking to enhance their projects with reliable and safe current measurement.

## Description

The SparkFun Current Sensor Breakout is a high accuracy board that utilizes the ACS723 for moderate AC and DC current sensing applications. The ACS723 sensor uses a Hall effect sensor to output a voltage relative to the current flowing through the IP+ and IP- pins on the board. The SparkFun Current Sensor Breakout measures both DC and AC currents all the way up to 5A, has full electrical isolation of measured and sensed circuits, and has a base sensitivity of 400mV/A. Although the analog output is adjustable to 80kHz, the bandwidth on the ACS723 Sensor Breakout width filter has been set to 20kHz to reduce noise when using at high gains. The full 80KHz bandwidth that the sensor is capable of can be recovered by closing the JP1 (Bandwidth Select) jumper on the back of the board. The ACS723 sensor uses a Hall effect sensor to output a voltage relative to the current flowing through the IP+ and IP- pins. The advantage of using a Hall effect sensor is that the circuit being sensed and the circuit reading the sensor are electrically isolated. The amplified breakout board (Low Current) is capable of sensing very small currents down to around 10mA and large currents up to 5A! However, since the output is analog, your usable readings will be limited by noise and the resolution of the ADC reading the output. This sensor is not recommended for current sensing lower than 10's of milliamps.

## Features

- The SparkFun Current Sensor Breakout is a high accuracy board that utilizes the ACS723 for moderate AC and DC current sensing applications.
- This sensor is not recommended for current sensing lower than 10's of milliamps.
- The SparkFun Current Sensor Breakout measures both DC and AC currents all the way up to 5A, has full electrical isolation of measured and sensed circuits, and has a base sensitivity of 400mV/A. Although the analog output is adjustable to 80kHz.
- The ACS723 sensor uses a Hall effect sensor to output a voltage relative to the current flowing through the IP+ and IP- pins on the board. The advantage of using a Hall effect sensor, specifically, is that the circuit being sensed and the circuit reading the sensor are electrically isolated meaning that, although your compatible with Arduino is running on 5V, the sensed circuit can be operating at higher DC or AC voltages!
- You should keep in mind how much power your resistors can handle though! If not, they'll end up a bit toasty... With 5V and 100mA, the power would be 500mW or 1/2W. The small resistors in the kit above can only handle 250mW or 1/4W at most. But, wait! A resourceful engineer knows you can still use the 1/4W resistors, you just need to split the power dissipation.

## Product Details

- **Brand:** SparkFun
- **Item dimensions L x W x H:** 1.02 x 0.71 x 0.08 inches
- **Material:** Copper
- **Item Weight:** 0.02 Pounds
- **Style:** Adjustable

## Images

![Current Sensor Breakout - ACS723 - Moderate AC and DC Current Sensing Applications - Base Sensitivity of 400mV/A - Full Electrical Isolation of Measured and sensed Circuits - Image 1](https://m.media-amazon.com/images/I/71GjVHiROwL.jpg)
![Current Sensor Breakout - ACS723 - Moderate AC and DC Current Sensing Applications - Base Sensitivity of 400mV/A - Full Electrical Isolation of Measured and sensed Circuits - Image 2](https://m.media-amazon.com/images/I/71xkt29esfL.jpg)
![Current Sensor Breakout - ACS723 - Moderate AC and DC Current Sensing Applications - Base Sensitivity of 400mV/A - Full Electrical Isolation of Measured and sensed Circuits - Image 3](https://m.media-amazon.com/images/I/71yDWEwODpL.jpg)
![Current Sensor Breakout - ACS723 - Moderate AC and DC Current Sensing Applications - Base Sensitivity of 400mV/A - Full Electrical Isolation of Measured and sensed Circuits - Image 4](https://m.media-amazon.com/images/I/71nDFtkbnEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good current sensor
*by H***M on January 18, 2021*

Spark Fun delivered on time with no problems. Good price. The current sensors work very well with low noise. I am using it to measure current through a Stepper Motor winding. Works great!

### ⭐⭐ Not sensitive to low amperage (<0.1ADC)
*by D***S on May 10, 2021*

I bought this intending to use it for a custom linear power supply I've built. I was planning to read voltage from it using an arduino analogRead() as proxy for DC current flowing through it, as it was designed.The product manual on the ACS723 indicates it has 400 mV/A output, so does this product. Using the circuit they describe here: file:///Users/deansanders/Downloads/ACS723-Datasheet%20(2).pdf I tested this module.With highly accurate volt-ohm meters I wasn't able to get a >4mV delta with ~106 mA flowing through it (i.e. 5V across a 47 ohm resistor). If the output scales linearly with amperage it should be 40mV not 4mV. This is far to low of resolution for an arduino to effectively read current... I wanted 10 mA resolution, not worse than 200 mA.I thought it might just be a badly machined part, so I returned it. Got another, tested it, got the exact same result. They are NOT sensitive for low amperage DC applications, which again is not mentioned in the datasheet. If your looking for an accurately scaling low amperage I.C. go for something else. I just ended up a using a cheapo current meter I have laying around, it works way better than this.

### ⭐⭐⭐⭐ low-profile screw
*by L***E on October 5, 2020*

the potentiometer is super hard to reach

## Frequently Bought Together

- SparkFun Current Sensor Breakout - ACS723 - Moderate AC and DC Current Sensing Applications - Base Sensitivity of 400mV/A - Full Electrical Isolation of Measured and sensed Circuits
- DAOKI 5Pcs ACS712 5A Range Current Sensor Module for Arduino

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-03-24*