GS1-128 Overview


GS1-128 is an application standard of the GS1 implementation using the Code 128 barcode specification. It uses a series of Application Identifiers to include additional data such as batch numbers, quantities, expiry dates and many more.

How to scan 1D and 2D barcodes (EN)

Supported Host Device


Supported Business Applications:

Partner Applications

Applications integrated with Socket Mobile's CaptureSDK.


Verify with your application provider that Socket Mobile's latest CaptureSDK was implemented in your app. See the latest CaptureSDK version.

See complete list of business applications.

Non-CaptureSDK Applications

Applications that are not integrated with Socket Mobile's CaptureSDK:



GS1-128 symbology is supported by default on all Socket Mobile barcode scanners. You can enable or disable this symbology on your Socket Mobile scanner simply by scanning the codes below.  Note: Scanner must be in a disconnected state before scanning the command barcode.

Enable GS1-128 Symbology*:

To enable the GS1-128 symbology scan the barcode below:

Enable GS1-128 Barcode

Disable GS1-128 Symbology*:

To disable the GS1-128 symbology scan the barcode below:

Disable GS1-128 Barcode

See the full programming guide Opens Worldwide site for more info and troubleshooting.
* D750 requires separate enable/disable command barcodes found in the programming guide.

Troubleshooting / FAQ

Q: What is the typical usage for GS1-128?

A: Logistics

Q: Group separators are non-printable characters. By default, your barcode scanner cannot read them. How to replace the group separator <gs> with an ASCII character?

A: App coming soon, please fill out a barcode support form.

Q: How to read the AIM ID?

A: App coming soon, please fill out a barcode support form.

Q: Need more help?

A: Go here for additional barcode troubleshooting and FAQs.