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  RFID card
RFID card RFID card  
card hanging strap and holder


What is RFID?
RFID stands for Radio-Frequency IDentification. The acronym refers to small electronic devices that consist of a small chip and an antenna. The chip typically is capable of carrying 2,000 bytes of data or less.
The RFID device serves the same purpose as a bar code or a magnetic strip on the back of a credit card or ATM card; it provides a unique identifier for that object. And, just as a bar code or magnetic strip must be scanned to get the information, the RFID device must be scanned to retrieve the identifying information.

RFID Works Better Than Barcodes
A significant advantage of RFID devices over the others mentioned above is that the RFID device does not need to be positioned precisely relative to the scanner. We're all familiar with the difficulty that store checkout clerks sometimes have in making sure that a barcode can be read. And obviously, credit cards and ATM cards must be swiped through a special reader.
In contrast, RFID devices will work within a few feet (up to 20 feet for high-frequency devices) of the scanner. For example, you could just put all of your groceries or purchases in a bag, and set the bag on the scanner. It would be able to query all of the RFID devices and total your purchase immediately.
RFID technology has been available for more than fifty years. It has only been recently that the ability to manufacture the RFID devices has fallen to the point where they can be used as a "throwaway" inventory or control device. Alien Technologies recently sold 500 million RFID tags to Gillette at a cost of about ten cents per tag.
One reason that it has taken so long for RFID to come into common use is the lack of standards in the industry. Most companies invested in RFID technology only use the tags to track items within their control; many of the benefits of RFID come when items are tracked from company to company or from country to country.

Common Problems with RFID
Some common problems with RFID are reader collision and tag collision. Reader collision occurs when the signals from two or more readers overlap. The tag is unable to respond to simultaneous queries. Systems must be carefully set up to avoid this problem. Tag collision occurs when many tags are present in a small area; but since the read time is very fast, it is easier for vendors to develop systems that ensure that tags respond one at a time.

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Product Name: RFID card
ZoTei Group Limited, to be No.1 in the card industry, to make the best cards in the world. Our advantages: environment material, competitive price, high quality product, fast delivery time.
> Card material: PVC, PP, PET, ABS
> Card size: CR80 (85.5mm x 54mmmm), or custom size.
> Color: white glossy, white matte, full color, gold or silver color
> Shipping: UPS/DHL /TNT by air or by sea
> payment: T/T, WesterUnion, Paypal
> Lead Time: 7-9 days after the receipt of 50% deposit of the total payment
> Certificate: ISO 9001: 2008; SGS
> MOQ: 100pcs
> Packing: 250pcs/box, 20boxes/carton.
> We accept custom material and artwork/design order.

  RFID Card Parameters
85.6×54×0.8 mm
Matt / Glossy / Frosted
offset, silk-screen
-25~50 ‘C
6 grams
200 or 250 pcs/box, or on request
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