---
product_id: 220526819
title: "ACS712 Hall Effect Current Sensor 30A + 2 Voltage Sensor DC0-25V for Arduino"
brand: "wayintop"
price: "VT4179"
currency: VUV
in_stock: true
reviews_count: 8
category: "Wayin Top"
url: https://www.desertcart.vu/products/220526819-acs712-hall-effect-current-sensor-30a-2-voltage-sensor-dc0
store_origin: VU
region: Vanuatu
---

# 30A current range 0.00489V analog resolution 0-25V voltage input ACS712 Hall Effect Current Sensor 30A + 2 Voltage Sensor DC0-25V for Arduino

**Brand:** wayintop
**Price:** VT4179
**Availability:** ✅ In Stock

## Summary

> ⚡ Empower your DIY electronics with precision sensing — don’t get left in the dark!

## Quick Answers

- **What is this?** ACS712 Hall Effect Current Sensor 30A + 2 Voltage Sensor DC0-25V for Arduino by wayintop
- **How much does it cost?** VT4179 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/220526819-acs712-hall-effect-current-sensor-30a-2-voltage-sensor-dc0)

## Best For

- wayintop enthusiasts

## Why This Product

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

## Key Features

- • **Compact DIY Essential:** Lightweight, surface-mount modules perfect for prototyping, hobbyists, and professional electronic projects.
- • **Precision Analog Output:** Get fine-tuned analog signals with 66mV/A sensitivity for current and 0.00489V resolution for voltage.
- • **Arduino-Ready Integration:** Plug-and-play terminal connectors and output pins designed for smooth Arduino analog input compatibility.
- • **Dual Power Metrics Mastery:** Seamlessly measure both voltage (0-25V) and current (±30A) in one sleek sensor combo.
- • **Robust Hall Effect Sensing:** Non-contact current measurement ensures safety and accuracy without circuit interference.

## Overview

This kit includes 2 ACS712 Hall Effect Current Sensor Modules capable of measuring ±30A with 66mV/A output, plus 2 Voltage Sensor Modules supporting DC 0-25V input with 0.00489V analog resolution. Designed for Arduino projects, these compact modules offer reliable, real-time voltage and current monitoring with easy terminal connections, ideal for makers and engineers seeking affordable, accurate sensor solutions.

## Description

WayinTop: Your Top Way to Inspiration. Voltage Sensor Module: - Voltage input range: DC0-25V - Voltage detection range: DC0.02445V-25V - Voltage Analog Resolution: 0.00489V - DC input connector: Terminal cathode connected to VCC, GND negative pole - Output interface: "+" then 5/3.3V, "-" then GND, "s" then the for Arduino AD pins Current Sensor Module: - The current sensor chips: ACS712ELC - Current Range: 30A - Pin 5V power supply, on-board power indicator; - The module can measure the positive and negative 30 amps, corresponding to the analog output 66mV / A; - No test current through the output voltage is VCC / 2; - Note: ACS712 is based on the principle of the Hall test, please use this field to avoid impact Package Included: 2 x ACS712 30A Current Sensor Module 2 x DC0-25V Voltage Tester Terminal Sensor

Review: Works as expected - Nice units that are exactly what I needed! The construction is well done and each unit was separately wrapped.
Review: Pretty good, but a couple things to know - These work OK and will do the basic job. Don't expect the precision of an expensive multimeter or data acquisition system, though. Sampling with the Analog pins of (most) Arduinos, you'll get 10 bits of resolution (1024 levels). On the current sensor: the chip on mine responds at about 66 mV per Ampere sensed (that's about .066 V - same number, expressed differently, for the noobs). It's important to know this because much of the online information says you'll have from .170 V to .2 V per Ampere. The difference is the particular chip on the board. Mine is an ACS712T ELC-30A (optimized for a 30 Amp range). The data sheet mentions a -5B (185mV/A) and a -20A (100mV/A) version. If you're getting crazy results, look into which chip is on your supplied board. Needed my microscope to read the top of this chip, but found "30A" in the part number, which fixed a lot that was wrong about my readings. Safety-wise, Arduino is isolated from the metered current by the Hall-effect sensor chip. The voltage sensor is just a simple voltage divider. Sure, the screw terminals are really nice, but if you've got to make a quick measurement, then take the circuit apart, you can build this out of precision resistors from your junk box. (If you're going to install something permanent-ish, this board may be worthwhile). As far as I can tell, there's no circuit isolation here, so your Arduino is exposed directly to a circuit that could be pumping out _any_ voltage, if you're not watching out for it. I don't think it's even fused. Maximum sense-able voltage with this device is 25vdc. Not sure what the safe max is, but that probably depends on your Arduino: this voltage divider will knock the input voltage down by a factor of 5 or so. Finally, getting a good measurement out of these requires that you measure and take into account your Arduino's Vcc voltage. If the Arduino thinks its supply voltage is 4.726 vdc, and your example code uses 5vdc, and a center voltage of 2.5v (5vdc/2), your measurements won't make sense. Your sketch needs to use the measured Vcc and Vcc/2 for the center to make the measurements match reality. Also, the Arduino has an internal Vcc measurement (_most_ boards do, anyway), which may differ from an external measurement (with a meter) of Vcc. I'd go with the internal value, if pressed to choose. Getting Vcc and center point right affect your math greatly. The price is right, and I'd buy these again, for simple hobby uses.

## Features

- 【Perfect Combination】Using this product can measure both voltage and current, very suitable for DIY electronic design projects.
- 【Current Sensor Module】Chip: ACS712ELC-30A; Pin 5V power supply, on-board power indicator; The module can measure positive and negative current of 30 amperes, corresponding to analog output of 66mV/A.
- 【Voltage Sensor Module】Voltage input range: DC0-25V; Voltage detection range: DC0.02445V-25V; Voltage Analog Resolution: 0.00489V; DC input connector: Terminal cathode connected to VCC, GND negative pole; Output interface: "+" then 5/3.3V, "-" then GND, "s" then the for Arduino AD pins.
- 【Package Included】2 x ACS712 Hall Effect Current Sensor Module + 2 x Voltage Sensor Module DC0-25V Voltage Tester Terminal Sensor

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08BZKPSFY |
| Best Sellers Rank | #123,907 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #23 in Current Sensors |
| Brand Name | WayinTop |
| Coil Voltage | 25 Volts |
| Connector Type | Terminal Block |
| Contact Current Rating | 30 Amps |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Current Rating | 30 Amps |
| Customer Reviews | 4.3 4.3 out of 5 stars (116) |
| Item Weight | 28 Grams |
| Manufacturer | WayinTop |
| Maximum Switching Current | 30 Amps |
| Maximum Switching Voltage | 25 Volts |
| Mounting Type | Surface Mount |
| Number of Terminals | 3 |
| Operation Mode | Automatic |
| Part Number | FC#WYTP74 |
| UPC | 744678327440 744678328140 |
| Unit Count | 4.0 Count |

## Product Details

- **Connector Type:** Terminal Block
- **Contact Material:** Copper
- **Contact Type:** Normally Open
- **Current Rating:** 30 Amps
- **Mounting Type:** Surface Mount

## Images

![ACS712 Hall Effect Current Sensor 30A + 2 Voltage Sensor DC0-25V for Arduino - Image 1](https://m.media-amazon.com/images/I/717vhNJ5m+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as expected
*by R***N on June 16, 2023*

Nice units that are exactly what I needed! The construction is well done and each unit was separately wrapped.

### ⭐⭐⭐⭐ Pretty good, but a couple things to know
*by D***N on June 23, 2021*

These work OK and will do the basic job. Don't expect the precision of an expensive multimeter or data acquisition system, though. Sampling with the Analog pins of (most) Arduinos, you'll get 10 bits of resolution (1024 levels). On the current sensor: the chip on mine responds at about 66 mV per Ampere sensed (that's about .066 V - same number, expressed differently, for the noobs). It's important to know this because much of the online information says you'll have from .170 V to .2 V per Ampere. The difference is the particular chip on the board. Mine is an ACS712T ELC-30A (optimized for a 30 Amp range). The data sheet mentions a -5B (185mV/A) and a -20A (100mV/A) version. If you're getting crazy results, look into which chip is on your supplied board. Needed my microscope to read the top of this chip, but found "30A" in the part number, which fixed a lot that was wrong about my readings. Safety-wise, Arduino is isolated from the metered current by the Hall-effect sensor chip. The voltage sensor is just a simple voltage divider. Sure, the screw terminals are really nice, but if you've got to make a quick measurement, then take the circuit apart, you can build this out of precision resistors from your junk box. (If you're going to install something permanent-ish, this board may be worthwhile). As far as I can tell, there's no circuit isolation here, so your Arduino is exposed directly to a circuit that could be pumping out _any_ voltage, if you're not watching out for it. I don't think it's even fused. Maximum sense-able voltage with this device is 25vdc. Not sure what the safe max is, but that probably depends on your Arduino: this voltage divider will knock the input voltage down by a factor of 5 or so. Finally, getting a good measurement out of these requires that you measure and take into account your Arduino's Vcc voltage. If the Arduino thinks its supply voltage is 4.726 vdc, and your example code uses 5vdc, and a center voltage of 2.5v (5vdc/2), your measurements won't make sense. Your sketch needs to use the measured Vcc and Vcc/2 for the center to make the measurements match reality. Also, the Arduino has an internal Vcc measurement (_most_ boards do, anyway), which may differ from an external measurement (with a meter) of Vcc. I'd go with the internal value, if pressed to choose. Getting Vcc and center point right affect your math greatly. The price is right, and I'd buy these again, for simple hobby uses.

### ⭐⭐⭐⭐⭐ Did the job perfectly
*by U***T on August 19, 2023*

Was iffy about this but it turns out pretty well

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-04*