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Hall Effect Magnetic Sensor Module, 3144E A3144 Hall Effect Sensor KY-003 DC 5V for Arduino PIC AVR Smart Cars by MUZHI(6 Pcs)

3.8 out of 5 stars 193 ratings
$9.99
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Purchase options and add-ons

  • Model: KY-003. Working voltage: DC 5V.
  • Hall switch integrated circuit using hall effect principle.
  • Its Input For the Magnetic Induction Intensity, the Output is a Digital Voltage Signal
  • Small size and high sensitivity. Fast response temperature and good performance. Precision and high reliability.
  • Used for Arduino, Raspberry Pie, PIC, AVR, Smart Car,and so on.
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Frequently bought together

Hall Effect Magnetic Sensor Module, 3144E A3144 Hall Effect Sensor KY-003 DC 5V for Arduino PIC AVR Smart Cars by MUZHI(6 Pcs
This item: Hall Effect Magnetic Sensor Module, 3144E A3144 Hall Effect Sensor KY-003 DC 5V for Arduino PIC AVR Smart Cars by MUZHI(6 Pcs)
$9.99
Get it Jul 22 - 30
Only 20 left in stock - order soon.
Ships from and sold by AiYongBing2025.
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EPLZON A3144 Hall Effect Sensor 3Pins Magnetic Detector for Arduino (Pack of 20 pcs)
$6.99
Get it as soon as Saturday, Jul 5
In Stock
Sold by EPLZON ELECTRON and ships from Amazon Fulfillment.
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HiLetgo 5pcs Hall Effect Magnetic Sensor Module 3144E A3144 Hall Effect Sensor DC 5V for Arduino PIC AVR Smart Cars
$5.99
Get it as soon as Saturday, Jul 5
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Sold by HiLetgo and ships from Amazon Fulfillment.
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Product details

  • Package Dimensions ‏ : ‎ 6.18 x 3.5 x 0.35 inches; 0.01 ounces
  • Item model number ‏ : ‎ MXRS-MKGW-02
  • Date First Available ‏ : ‎ March 6, 2020
  • Manufacturer ‏ : ‎ MXRS
  • ASIN ‏ : ‎ B085KVV82D
  • Customer Reviews:
    3.8 out of 5 stars 193 ratings

Product Description

Package Included:
6* HiLetgo Hall Effect KY-003 Magnetic Sensor Module
Description:
1. Non-Contact Switch
2. Hall Switch Integrated Circuit Using hall Effect Principle,
3. USES The Semiconductor Integrated Technology Manufacturing Magnetic Susceptibility of the Circuit,
4. It is by the Voltage Regulator, Hall Voltage Generator, Differential Amplifier, Schmidt Triggers, Temperature Compensation and the Open Collector Output Stage Circuit Composed of Magnetic Sensitive Sensor Circuit
5. Its Input For the Magnetic Induction Intensity, the Output is a Digital Voltage Signal

Customer reviews

3.8 out of 5 stars
193 global ratings

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Customers say

Customers find the hall effect sensor module to be not terrible for the price. However, the functionality and latching capability receive mixed feedback, with some reporting reliable performance while others experienced complete failure. Additionally, the quality control receives negative feedback from customers.

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Value for moneyFunctionalityLatching capabilityQuality control
3 customers mention "Value for money"3 positive0 negative

Customers find the sensor module offers good value for money.

"4/6 worked so not terrible for the price" Read more

"Worth the price..." Read more

"Okay For the Price..." Read more

19 customers mention "Functionality"10 positive9 negative

Customers have mixed experiences with the sensor module's functionality, with some reporting reliable performance while others found that not a single unit worked.

"...Worked like a charm!" Read more

"This order contained 6 pieces of Hall Effect Magnetic Sensor boards. All 6 failed in that immediately upon 5 volts and GND being applied to the..." Read more

"It was great the hall effect sensors are efficient and effective." Read more

"First order came and only 3 of the hall sensors worked. Sent back and they sent me 6 more. 5 of them worked." Read more

8 customers mention "Latching capability"4 positive4 negative

Customers have mixed experiences with the latching capability of these sensors, with some reporting that half of the sensors are latching while others note specific issues with the latching feature not working for their applications.

"It was great the hall effect sensors are efficient and effective." Read more

"...But a lot of them don't function as expected as they latch instead of only signaling when a magnet is over the sensor...." Read more

"This hall sensor is an on and off sensor" Read more

"3 of 6 sensors received were faulty, latching on pole swaps, as indicated elsewhere in the reviews...." Read more

4 customers mention "Quality control"0 positive4 negative

Customers report issues with quality control.

"It's not great quality; only two of the 10 I bought worked correctly." Read more

"Apparently they have no quality control what so ever...." Read more

"Highly defective..." Read more

"Bad quality control..." Read more

Non-descriptive item info and inconsistent items received
2 out of 5 stars
Non-descriptive item info and inconsistent items received
I received 2 momentary sensors and 4 latching sensors. another review mentions receiving 3 and 3. Latching ones (component marked "3144 235X") output high when a positive pole is close, and stay on until a negative pole is put close. The momentary ones (component marked "3144 233") only output high when a positive pole is nearby. I needed only momentary sensors unfortunately :(
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Top reviews from the United States

  • John M
    5.0 out of 5 stars Worked great!
    Reviewed in the United States on May 8, 2021
    Verified Purchase
    Installed this on an RC truck wheel with a magnet glued to inner rim. Read it into an Arduino Mega with a library code using I2C interface to get ground speed (wheel rotations). Worked like a charm!
    3 people found this helpful
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  • Carol B.
    5.0 out of 5 stars Good sensors
    Reviewed in the United States on January 25, 2021
    Verified Purchase
    It was great the hall effect sensors are efficient and effective.
    3 people found this helpful
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  • My Amazon Reviews
    1.0 out of 5 stars Hall Effect Magnetic Sensor Module, 3144E A3144 by MUZHI(6 Pcs)
    Reviewed in the United States on August 25, 2022
    Verified Purchase
    This order contained 6 pieces of Hall Effect Magnetic Sensor boards. All 6 failed in that immediately upon 5 volts and GND being applied to the board the onboard LED would come on indicating that the S lead was low and testing proved that to be the case. All 6 boards contained 3144 sensors and upon replacing one of the failing board's 3144 with a new 3144 that I had purchased separately that board worked correctly in that no LED upon power being applied and a magnet in the vicinity of the new 3144 turned on the LED and the S lead went low as expected. A good guess based on the above failing board's 3144 being replaced would indicate that all 6 boards have a batch of bad 3144.
    Did not contact the seller or attempt to have them replaced them since I only needed 1 working board and it appears that repairs can be made with new 3144 as needed so not worth the effort.
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  • Amazon Customer
    4.0 out of 5 stars Nice confined setup
    Reviewed in the United States on January 17, 2023
    Verified Purchase
    First order came and only 3 of the hall sensors worked. Sent back and they sent me 6 more. 5 of them worked.
    One person found this helpful
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  • Michael Brumm
    3.0 out of 5 stars A good sensor works great, but expect only about 28% of these to be good
    Reviewed in the United States on July 13, 2023
    Verified Purchase
    I bought a set of these sensors to find out if they would work for detecting operational cars in a model railroad. I knew from reviews that yield could be questionable, but I only needed one so that didn't concern me. The sensor turned out to work so well that I decided to replace the IR sensors I had been using on my test track to detect train positioning (too finicky, too many adjustments needed, too sensitive to light) with these. All six sensors I received performed as expected, worked reliably, and didn't require periodic adjustments -- definitely a 5-star experience. So I told my friend to order these for the room-sized rail yard we are building at his place.

    That's when we started experiencing what has been covered in several reviews. A good sensor works reliably, and once installed seemingly never has to be dealt with again. But a lot of them don't function as expected as they latch instead of only signaling when a magnet is over the sensor. I was concerned over whether a working sensor might become latching at some point, but I've yet to see a working sensor fail, even after I inadvertently reversed the +5v and -5v wires on one.

    Of the 72 my friend ordered only 21 worked as expected. From a second order of 60 only 16 performed as expected. That gives an overall yield of 28% on a sample of 132 parts. In my mind that's a one-star product, except that we've been able to get a refund on the bad parts without any problem so I figure it evens out to somewhere in the middle.

    Bottom line, if you don't mind ordering 3-4 times the number of sensors actually needed and are fine dealing with returns, I would highly recommend these sensors. Just be prepared to screen them before installation.
    2 people found this helpful
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  • anwar
    5.0 out of 5 stars Worth the price
    Reviewed in the United States on April 25, 2021
    Verified Purchase
    Works amazing. Use smaller magnets for more percision
    3 people found this helpful
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  • mff
    2.0 out of 5 stars high DOA rate
    Reviewed in the United States on June 9, 2024
    Verified Purchase
    3 of 6 sensors received were faulty, latching on pole swaps, as indicated elsewhere in the reviews. How it is possible to mess up a hall sensor, I don't know, nonetheless, be willing to accept high "dead on arrival" rate if ordering. **two stars vs *one, because half of them I received do work, and I only need one, and I expected the fails from reading reviews.
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  • Will Kellum
    5.0 out of 5 stars Very cool
    Reviewed in the United States on December 4, 2021
    Verified Purchase
    Not only did these work well, the electromagnetic concept they demonstrate is trippy
    One person found this helpful
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