• On-Board Units (OBU)

On-Board Units (OBU)

An on-board unit (OBU) is a GNSS class locator that sends geolocation data to e-TOLL through data transmission.

By choosing an OBU, you gain compactness, mobility and the ability to move the device between vehicles. You can install the set yourself easily, without interfering with the interior of the vehicle.

For more information on device selection, contact the e-TOLL network distribution point or an OBU operator.


  • check the list of OBU operators and OBUs approved for e-TOLL (the list can be found in the Materials to download section below),
  • purchase the device with its unique business number and a subscription for geolocation data transmission at the selected e-TOLL network distribution point or from the selected OBU operator,
  • get registered in e-TOLL (see how to do it in the How to get registered) tab, register the device, match the device with the vehicle and activate it – you can do it quickly and smoothly via the Internet Customer Account,
  • prior to installation, read the user manual and instructions attached to the given OBU type.

If the OBU or ZSL device is not working properly or has suffered a technical failure, a report on this matter should be addressed exclusively and directly to the supplier from whom it was purchased. The Ministry of Finance and the National Fiscal Administration shall not be held liable for failures and technical problems of devices for transmitting geolocation data to the e-TOLL system. A failure of the device purchased at a Customer Service Facility (MOK) of the e-TOLL network may be reported only at the same MOK where the device was purchased. Proof of purchase together with the device is required for acceptance of the claim. The completed claim form is sent by an employee of the MOK to the supplier of the OBU/ZSL device for processing.

Materials to download

  • List of OBU ZSL Operators and devices in the e-TOLL system

    Format: pdf | Rozmiar: 296.46 KB

Ministerstwo FinansówKrajowa Administracja Skarbowa

e-TOLL helpline

+48 22 24 337 77

Application form

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