KY-003 Hall Magnetic Sensor Module

2 sold in last 8 hours
Ednex Shop
Estimated Delivery in 7 To 15 days
Dhs.4.50 AED
  • Hall effect sensor for detecting magnetic fields

  • Analog transducer that outputs voltage based on magnetic field strength

  • Used for proximity switching, positioning, speed detection, and current sensing

  • Signal line is HIGH when no magnetic field is present

  • Signal line goes LOW and LED lights up when a magnetic field is detected
Size Guide


Products and goods sold on our site are expected to meet the highest quality standards and your expectations when you order online. However, in case you decide to return your order / part of any order for any reason, please read our return policy carefully to process your returns. 

Our policy lasts 7 days. If 7 days have gone by since your order has been delivered, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.


To complete your return, we require a receipt or proof of purchase and a RMA (Return Material Authorization) Number.  Do not ship your returns till you have an RMA number.  To get an RMA Number, please call our customer support number and they will provide you with one.  Any item that is not accompanied by all the required documents above will not be accepted for returns.



To return your product, you should mail your product to:

EdNex Educational Aids Trading LLC.

205, Al Reyami Building, Karama, Near Karama PO,

PO Box 124467, Dubai,

United Arab Emirates.


You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

Please use a shipping method that can be tracked and insured when you ship your returns for your own protection. We don’t guarantee that we will receive your returned item.


Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Unopened Sets:  For unopened sets, refunds will be approved in full (minus shipping and handling) and will be credited to you in the same method payment was made.

Opened Sets: For opened sets, refunds will be in the form of store credit or exchange only.

Software:  No refund will be applicable on software purchased along with another product or stand alone.


Sale items (if applicable)

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.


Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again.

Then contact your credit card company, it may take some time before your refund is officially posted.

Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at


Exchanges (if applicable)

We only replace items if they are defective or damaged.  If you need to exchange it for the same item, send us an email at and after confirmation from our customer support team, please send your item to:

EdNex Educational Aids Trading LLC.

205, Al Reyami Building, Karama, Near Karama PO,

PO Box 124467, Dubai,

United Arab Emirates.

The KY-003 Hall Magnetic Sensor Module is a versatile sensor module designed to detect magnetic fields using the Hall effect. It functions as an analog transducer, converting the strength of a magnetic field into a corresponding voltage output. This module is commonly used for various applications, including proximity switching, positioning, speed detection, and current sensing. It provides a reliable and accurate method for detecting the presence and strength of magnetic fields in these applications. The KY-003 module operates with a signal line that is normally in a HIGH state when no magnetic field is present. When a magnetic field is detected, the signal line goes LOW, and an LED on the module lights up, providing a visual indication of the presence of a magnetic field. With its compact size and simple design, the KY-003 Hall Magnetic Sensor Module is easy to integrate into electronic projects and can be connected to microcontrollers or other devices for further processing of the magnetic field information. Whether you need to detect the proximity of objects, monitor the speed of rotating elements, or measure current through magnetic field variations, the KY-003 Hall Magnetic Sensor Module offers a convenient and effective solution. Its reliable performance and straightforward operation make it a valuable component for projects that require magnetic field detection capabilities.
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KY-003 Hall Magnetic Sensor Module
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