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Magnetic Hall Effect Sensor Module - KY-003

The KY-003 Hall Magnetic Sensor Module is an A3141 IC based breakout board that can be used as a magnetic switch.


Availability: 24 in stock

Buy now, pay later available.

SKU PHI1071272 Category Tags , , ,


The KY-003 Magnetic Hall Effect Sensor Module is an A3141 IC-based breakout board that can be used as a magnetic switch. The sensor has a GND, +5V supply and a digital output pin. The signal line pin goes HIGH when a magnetic field is detected, and LOW when no field is detected.



  • Operating voltage: 4.5V – 24V
  • Operating temperature: -40c – 85c
  • Dimensions: 18.5mm x 15mm


Pin Specifications:

  • Pin 1: GND
  • Pin 2: +5V
  • Pin 3: Digital output



  • 1 x KY-003 Magnetic Hall Effect Sensor Module

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We ship Australia wide to all addresses, including PO Box, Parcel Locker, etc.

The following shipping options available are listed below:

Australian Orders

  • Standard Shipping – Free (low cost / small products) – Sent via standard Australia Post stamped mail, 3 – 7 business days delivery depending on location, minimal tracking.
  • Standard Shipping – Free (higher cost / larger products) – Sent via Australia Post Parcel Service or Courier Service, depending on location and mailing address, 2 – 5 business days delivery, with full tracking.
  • Express Post – $12.00 (Cost may be higher depending on product size) – Sent via Australia Post Express Service, 1 – 2 business days for metro orders, potentially longer for orders outside of metro zones, with full tracking.

Orders outside of metro orders can take 2+ days longer than the estimates stated above.

International Orders

Shipping costs for international orders vary depending on location and package size, where possible we have kept this to flat rate charges to reduce confusion.

International orders are shipped through Australia Post and Sendle courier service depending on the most economical at the time.

Pick Up
In-person pickup is currently not available. If the order is urgent, please contact us to see what can be arranged.

If you have any questions, please have a look at the customer service portal where you will find answers to many common questions, or you can reach out to us through the contact us page.

More Information

If you would like more information regarding placing international orders, please view the faq page under the “Do you accept international orders?” section.

Hall Magnetic Sensor Module - KY-003Magnetic Hall Effect Sensor Module – KY-003

Availability: 24 in stock

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