There is no need for a label reader/scanner as any modern smartphone or tablet that can scan QR Codes can easily be used with Tint Wiz inventory.
Label printer and replacement labels:
Any printer that can print 1.1" x 3.5" labels can print Tint Wiz film labels. If you are looking to purchase one, we recommend getting a Brother QL-820NWB as it supports Airprint and a breeze to use with your phone/tablet.
Scale for weighing your rolls to track how much left on them:
You can input film weights in kilograms, lbs + oz, or lbs only with up to 3 decimals in Tint Wiz. But for simplicity and making calculations more precise; it would be a better option to get a scale that can weight in lbs up to 3 decimal points.