Instead of expensive and massive cash-counting gadgets you could have this infrared scanner integrated in a ring. It also features an integrated LED display. All you need is.. money!
More pictures, here.
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Instead of expensive and massive cash-counting gadgets you could have this infrared scanner integrated in a ring. It also features an integrated LED display. All you need is.. money!
More pictures, here.
what is the theory of that invention? how does it work?