Designed for small to medium enterprises requirement of security Integrates RFID, burglar alarm, time attendance and access control functions etc. Features high quality musical buzzer, multiple ...

It turns out that it can muster just enough power to charge a small digital ... when a device that uses RFID (like your phone) is nearby: When approached by a RFID reader some of the energy ...

If you’ve worked with passive RFID before, you know that most readers only work within inches of the card. In [Fran’s] DEFCON talk this summer he calls it the “ass-grabbing method” of ...

Also called an "RFID interrogator." The maximum distance between the reader's antenna and the tag vary, depending on application. Credit cards and ID badges have to be brought fairly close to the ...