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5PCS 30A Range Current Sensor Module ACS712 Module for Arduino

4.1 out of 5 stars 85 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
Brand DAOKI
Color 30A
Special Feature Compact
Voltage 5 Volts
Form Factor Compact
Model Name acs712
Pattern Solid
Adjustable Temperature Control No
Item Weight 0.02 Kilograms
Is Cordless? No

About this item

  • Details see description
  • Wholesale item !
  • Most of Modules offer only instructions and specifications.
  • Technology service NOT available.

Product information

Technical Details

Brand Name ‎DAOKI
Model Info ‎TS-US-157-CA
Item Weight ‎0.704 ounces
Product Dimensions ‎4.4 x 2.8 x 0.8 inches
Item model number ‎TS-US-157-CA
Is Discontinued By Manufacturer ‎No
Part Number ‎TS-US-157-CA
Form Factor ‎Compact
Special Features ‎Compact
Color ‎30A
Voltage ‎5 Volts
Material Type ‎Other
Batteries Included? ‎No
Batteries Required? ‎No
Item Weight ‎0.02 Kilograms

Additional Information

ASIN B00XT0PL20
Customer Reviews
4.1 out of 5 stars 85 ratings

4.1 out of 5 stars
Best Sellers Rank
Date First Available May 17, 2015

Warranty & Support

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DAOKI 5PCS 30A Range Current Sensor Module ACS712 Module for Arduino

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Product Description

Features:
Chip: ACS712ELC-30A
Supply power: 5V
Measuring range: 30A
Analog output: 600 mv/A
When there is no the detection current through, the output voltage is VCC / 2
PCB board dimension:31x13mm Package Contents:
5x30A range ACS712 current sensor module

Customer reviews

4.1 out of 5 stars
85 global ratings

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Customers say

Customers find the current sensor module works well. However, the amp capacity receives negative feedback, with multiple customers noting that the screw-down terminals are tiny.

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FunctionalityAmp capacity
9 customers mention "Functionality"9 positive0 negative

Customers find that the current sensor module works well, with one customer specifically noting its effectiveness with DC current.

"These work perfectly as advertised and are very well priced...." Read more

"...They are working great so far hooked up to an Arduino and displaying the results on an OLED display." Read more

"...In the end they work well with the additional circuitry...." Read more

"Works Great!..." Read more

4 customers mention "Amp capacity"0 positive4 negative

Customers report issues with the current sensor's capacity, noting that the screw-down terminals are tiny and not suitable for 30 amp usage.

"Not designed for the rated amperage. Screw down terminals are tiny, they won't even allow a 18 AWG solid core wire." Read more

"...Base on the green PCB mounted terminal block is only rated for 10 Amps!..." Read more

"...Definitely cannot take 14ga or larger conductors. You *might* be able to squeeze a 16ga in, but I doubt it...." Read more

"Ok, not very accurate and connectors too small for 30amp DC 12v wiring" Read more

Top reviews from the United States

  • C. Yang
    5.0 out of 5 stars These work perfectly as advertised and are very well priced ...
    Reviewed in the United States on July 28, 2017
    Verified Purchase
    These work perfectly as advertised and are very well priced. Be aware that because these are analog sensors, you will probably want to use an averaging For loop in your code to use these with, otherwise your values are going to be jumpy. Look up 'ACS712 code' on Google and you will find many Arduino sketches available (I'm using parts from Elecrow's website).

    My main annoyance is that these do not have any obvious way of screw-mounting, which is important as any connected wires could be taking up to 20 amps- meaning something like 12 gauge wire is used, thick and heavy to impose quite a load on the board. There are other versions that do come with screw mounting holes, or you can (very delicately and carefully) drill your own on either side of the chip.
    10 people found this helpful
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  • Nick9876
    5.0 out of 5 stars Good current sensor
    Reviewed in the United States on April 21, 2025
    Verified Purchase
    Great current sensors.
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  • johnjohn5578
    4.0 out of 5 stars One damaged, but the rest are great!
    Reviewed in the United States on September 1, 2017
    One of the items came broken, but the other 4 do what they are supposed to do.
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  • SWH
    1.0 out of 5 stars Screw Down Terminals are Tiny
    Reviewed in the United States on March 5, 2025
    Verified Purchase
    Not designed for the rated amperage. Screw down terminals are tiny, they won't even allow a 18 AWG solid core wire.
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  • Kwinten Hale
    5.0 out of 5 stars Works as described
    Reviewed in the United States on October 14, 2023
    Verified Purchase
    I purchased these to use on my college senior project to read dc current of motors on a robot. They are working great so far hooked up to an Arduino and displaying the results on an OLED display.
    One person found this helpful
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  • Steve M.
    5.0 out of 5 stars Pain in the neck to work with...
    Reviewed in the United States on February 28, 2021
    Verified Purchase
    A powerful stabilizer algorithm is needed as the numbers jump all over the place, just as sloppy measuring DC as well as AC.

    Mfr should make a board-only version or versions with 4 units per board, NO screw terminals or DIP pins, let the DIY work that part out.
    2 people found this helpful
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  • Amazon Customer
    3.0 out of 5 stars Does not measure AC current without extra work.
    Reviewed in the United States on January 15, 2018
    Verified Purchase
    Came as advertised with no damage, the items work as they are supposed to with the exception that they DO NOT measure AC current without either programming a sketch to calculate RMS voltage or an op amp/ RC (resistor/capacitor) circuit to rectify and amplify the signal going into the Arduino. No matter how much AC current you put through it, the output is about .5VDC. Works well for DC current. I got the 30 amp version to build an automated dust collection system for a woodshop and had to stop and order some op amps and various other parts to get them to work with AC. In the end they work well with the additional circuitry. Search the internet for "ACS712 AC current" and there are several solutions available.
    7 people found this helpful
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  • Permelia
    5.0 out of 5 stars Works Great! Even when reversing polarity for motors.
    Reviewed in the United States on August 18, 2017
    Verified Purchase
    Works Great! I use them to monitor the current of the motors of the stabilizers on my travel trailer so my controller knows when to stop when the current draw increases when fully extended or retracted. Voltage output adjusts above and below a center value (about 2v) based on positive or negative current, so you know how much current is being drawn and what direction the motor is turning at the same time.
    4 people found this helpful
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