Almost any barcode scanner will work as long as it can read code-128 and programmed to hit return after scanning. You can test out your barcode scanner using UPC codes or the system generated barcodes in the demo for PHP Point Of Sale
The recommended receipt printer for PHP Point Of Sale is the Star TSP 100 ECO using the Firefox browser or Safari browser. Although this is the recommended printer, you can try your own on the demo site to see if it will work correctly. (Make sure to set margins to 0 and remove any headers/footers).
The only types of cash drawers that are possible to support (that open automatically) are the ones that connect to a receipt printer such as Posiflex CR6310b
We support the Zebra LP2824 model.