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SN04-N NPN Inductive Proximity Switch Sensor

The SN04-N NPN Inductive Proximity Switch Sensor can detect metal objects within 5mm.


Availability: 29 in stock

Buy now, pay later available.

SKU PHI1072208 Category Tags , ,


The SN04-N Inductive Proximity Switch Sensor can detect metal objects within 5mm.

The sensor acts as a switch by Signal output pin to 5V when there is a metal object sensed. The sensor has a 1-meter cable attached.

This is an NPN type.



  • Voltage Input: 10 – 30V DC
  • Digital Output: 0V or 5V
  • Type: NPN
  • Detection Distance: 5mm (max)
  • Current Consumption: 5 mA
  • Response Frequency: 500Hz
  • Cable Length: 1 meter
  • LED visual indication
  • Dimensions: 35mm x 18mm x 18mm (module)



  • 1 x SN04-N NPN Inductive Proximity Switch Sensor with 1-meter cable

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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.

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