How does an anti-shoplifting scanner know if you’ve bought the item?

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I read that the scanners at the doors of a store detect items with magnets and such but what I don’t understand is how it differentiates between items that have been paid for

In: Technology

5 Answers

Anonymous 0 Comments

Former retail worker here!

We (at my old job) actually removed them at checkout. Occasionally one would slip past the cashiers and trigger the alarms, at which point one of us would go to the front and remove the tag.

(In case anyone is wondering, my former employer is a retail chain whose name rhymes with Bold Gravy.)

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