To use the EAN/Barcode interface, you can use the camera of your iPad Air or iPad Mini or a professional scanner (Socket Mobile®).
Using the Socket Mobile® Scanners
If you have connected the scanner to your iPad, it is immediately ready for use. Simply hold the scanner's laser at the EAN/barcode and the cash register recognizes the product.
Using the internal camera
If you want to use the internal camera, you can access it via the PLU button. Once you have selected the Camera button, the scan field will be displayed.