for context i just bought 3 bags of beef jerky from 5 below and they all had one of those square tags with the lines on them and i only scanned one 3 times at the self checkout how do they get deactivated
Edit [https://imgur.com/a/c3DFJFg](https://imgur.com/a/c3DFJFg) here’s a picture of it
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I’m pretty sure what you are describing is a desiccant, not an anti-theft tag. Those are larger & are removed at checkout.
RFID tags are inventory devices and not generally for anti theft. If the store has a device capable of reading RFID tags, it’s like playing Marco-Polo. These devices can do one of two things: count product or find product. The RFID has a unique code, a voice if you will, depending on the UPC code and other embedded coding unique to that one item (like a name).
For instance, if I’m looking for my Slim Jim’s, I’ll tell the device what item code I’m looking for. The device starts sending out a signal and looking for the match of just the UPC. Imagine it saying ‘Marco!’ constantly until it picks up on the familiar voice, ‘Polo!’ Some of these devices make a variety of sounds, usually more frequently sounds, as you get closer to the product you are searching for.
For inventory reasons, the device may not make many sounds, but is sending out constant ‘Marco!’s and receiving a variety of ‘Polo!’s back to it. The device is then tallying up each unique voice it hears along with those unique names. After some time the operator of the device finishes waving this device around a store and a computer handles the data to determine what is still in the store versus what the store should actually have. For instance, I should have 20 Slim Jim’s but my device may only picked up 18. For inventory management, it sees I have a discrepancy, a loss, of two. But I also have data containing how many pillows in the store, laundry detergent, etc.
These inventories then be put together to find other statistics that could be effecting a store, like theft or operational shortages. These inventories can also be used to correct systems data in which stores use to order more products if none of these particular voices are heard yet they are supposed to exist.
Along with these inventories, the system sees that your three slim Jim’s are scanned and corrects the count for what the store should have prior to the next inventory sweep with the device just through the UPC code. The RFID has nothing to do with the register or scanner once it’s at a checkout.
Anything that sets off EAS towers are anti theft deterrents that generally are using magnetic sensors- no RFID included.
They’re destroyed at the register. A small amount of RF can activate an antenna attached to a chip that basically screams “I’m stolen” at the reader. You pass it over the deactivation pad and it just fries the chip completely. No RF signal is returned with “I’m stolen”.
The black lines do not seem to connect and loop with each other. The RFID needs them to so it can detect and react to the radio signal. It’s supposed to be a single uninterrupted circuit path. This may be a fake sticker to deter theft.
It probably detected all the tags and scanning one activated the deactivator which deactivated the tags that matched the item parameters, which could be price, UPC, product ID, etc.
At each register and self-check out is a polarizing magnet to disable them triggering the sensor. Used to work there.
I worked in a UK supermarket and a lot of the stickers were deterrents and wouldn’t actually set off the alarm. The only things that would are the large clip on devices on clothing and alcohol.
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