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Is such a use of radio frequency identification technology possible? —Name withheld ——— That's an interesting question. I would say yes, provided that the reader and phone both had Bluetooth functionality. For longer-range communication, an RFID reader could probably...

The Web site suggests that the technology’s ability to reduce internal theft will likely be short-lived. Here’s why that’s wrong.

Thanks in advance for your cooperation. —Mayadah Hassan (Ph.D. student at Brunel University, in West London) ——— Dear Mayadah, The answer to your question depends on the type of RFID system that you are using within a warehouse. A company might employ high-frequency...

I have a Motorola MC9090-G RFID handled interrogator, and I need to develop an application in which a user can fill out a form on the device, and data would then be written to a tag's memory. Can you please provide some guidance about how I might achieve this goal?...

Analyst Leslie Hand says RFID will “help brick-and-mortar retailers compete in the face of major industry transformation,” and that retailers should expect their competitors to begin using the technology soon.

Please let me know. Thanks. —Name withheld ——— It depends on the specific type of information that you require. Our Get Started section features an article explaining the main RFID standards (see A Summary of RFID Standards). You'll also find many other...

If so, please provide some information about such tags. —Name withheld ——— Yes. Most low-frequency (LF) and high-frequency (HF) RFID tags work from a distance of 1 to 3 feet, and that read range can be extended by various means, such as using a larger reader antenna....

Are there any HF tags that will continue to operate after being exposed to a temperature of 250 degrees Fahrenheit (121 degrees Celsius) for a maximum of 3.5 hours? —Name withheld ——— Yes, but you would likely need to conduct testing in order to make sure that the...

I am researching how to utilize RFID wristbands to check in at events. By scanning a wristband against Facebook or Foursquare presence readers stationed at an event, a visitor would be able to check himself or herself in to that location. This check-in would then be...

We need to find a way to trigger an alert. How can we accomplish this? —Shabana ——— Dear Shabana, Several companies manufacture RFID transponders that have an accelerometer inside them, so when a patient falls, that movement is detected and an alert can be issued to...

And if so, in what ways? —Tom (Parsipanny, N.J.) ——— Tom, Radio frequency identification is being employed in two primary ways at trade shows and conferences. First, companies are using the technology for lead retrieval. Trade-show badges typically have bar codes on...