QR codes and RFID tags aren't uncommon when it comes to automated payment applications, and now Colorado-based ShelfX has purposed them for its new wireless-equipped Vending Fridges. Eliminating the need for a cashier - or cash, for that matter - each unit allows you to purchase any items packed inside by scanning a QR code with your phone (using the company's app) or an RFID badge. Upon presenting either method to the machine, it's able to tell who you are and unlocks its door. From there, you can grab whatever you'd like, while ShelfX automatically pulls funds your account for what's been removed.
Engadget, ShelfX's Vending Fridge nixes the cashier, uses QR codes, RFID to 'know what you took'
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