Blue Rewritable 125KHz RFID-EM Proximity Keyfob for OEM

RFID-EM Rewritable Proximity Keychain at 125KHz Color Blue

Proximity keychain for radio frequency identification access controls, compatible with RFID/EM technology. These keys are programmed with a master key to allow access to offices, homes, premises, rooms, etc.

The key contains a chip that, when approached to the reader, receives a current that activates it, allowing access. When this is activated, it returns an identification code.

The key comes in blue. And it can be rerecorded, so we can use it again. It does not need batteries since it is a passive device. These key fobs do not come configured. An engraving tool is essential to set an initial code so that it can work with the readers. If they are not programmed, they do not work.