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KY-024 Linear Magnetic Hall Effect Sensor Module
KY-024 Linear Magnetic Hall Module
KY-024 Linear Magnetic Hall Sensor
KY-024 Linear Magnetic Hall Module
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KY-024 Linear Magnetic Hall Effect Sensor Module

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Rs. 47.00 (Exc. GST)

KY-024 Linear Magnetic Hall Effect Sensor is a small, versatile, linear unipolar hall-effect sensor board that can act as a magnetic switch or simply measuring the strength of the magnetic field present. This hall effect sensor module works on hall effect principle so, it is more sensitive to magnetic flux and suitable for harsh environment because of semiconductor type casing and no glass encapsulation. This can work as both analog and digital unipolar hall effect sensor, it changes its state if one pole of magnet comes near it which can be easily read by any Digital GPIO pin on the Microcontroller board like Arduino, Raspberry Pi, Beagle bone Black, if is working in Digital Mode or you can connect the Analog output to any ADC and see the strength of the magnetic field present. This is ideal for commercial, consumer and industrial applications like measuring the RPM of the wheel, position sensor for machining tools, positional feedback for control systems, detecting the poles of magnets in BLDC Motors, magnetic alarm doors etc. There is a 49E Linear Hall-Effect Sensor, a LM393 Dual Differential Comparator, a potentiometer, two LED's, and six resistors in KY-024 module. With the help of potentiometer, you can change the sensitivity of the module to provide digital output.



  • Operating Voltage Range: 2.7V to 6.5V
  • Sensitivity 1.0mV per Gmin
  • Board Dimension 1.5cm×3.6cm
  • Responds to Either Positive or Negative Gauss
  • Linear Output for circuit design flexibility


Product Description


You can read this change in Digital Output to make it work as a switch in your application. You can use digital Read with delay or can use attachinterrupt function in Arduino which read if there is any change in state at the digital pin the attachinterrupt is enabled. In Analog mode you need to connect with any of the onboard Analog pins and then read the value to detect the strength of the magnetic field.


Additional Resources

IoT based Magnetic Door Security Alarm using Google Assistant

Interfacing hall effect sensor with Raspberry Pi

Package Contents

1×KY-024 Hall Effect Sensor Module

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Returns Policy

Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.

1. Damaged During Shipment
If you receive a product damaged during shipment, please notify us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.

2. Wrong Item Shipped

If your item looks different from what is shown in the image on our website, we will take the item back and provide a refund or replacement as per your choice.

Limitation of Returns
We don't accept the returns for the products damanged by improper use of the product. Moreover we don't accept the return, if the ordered product is not fit for any specific application. Please read the product specifications and datasheet before selecting and ordering a product. Returns are accepted only with 3 days from the date of delivery.


We ship to all over India with free shipping on all prepaid orders above 500. For Cash on Delivery orders INR 80 will be charged for orders below INR 599 and INR 30 will be charged for the orders above 599. Please contact to our support team at for any question related to shipping.

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