What is the difference between Barcodes and Proximity Cards?
A barcode is basically a series of black and white bars (zebra stripes) in a pattern that can be read by an optical reader. You will find barcodes on almost any retail product, on gym keytags and in many other places. Barcodes are inexpensive to produce (you can use any printer with special software), and they are easily reproducible. Gym Assistant barcode keytags are laminated to increase durability. To read a barcode the use usually slides the barcode through a slot reader mounted to the wall. A proximity card is a plastic card (or key fob) that contains a proprietary integrated circuit. To read a proximity card the user simply places the card within 3-6 inches of the reader (a small plate) mounted to the wall. Proximity cards are also sometimes called “contactless” cards. Pros-and-Cons of Barcodes vs.
