ID Key Fob Card Proximity ID Card Token Tags Keyfobs for Door Entry Access Control System(Read Only), Pack of 20

Excelente

I have a PetLibro RFID cat feeder. My cat ,the explorer, lost the collar tag. The seller was supportive, sent me 2 reflacement RFID tags. I ordered these blue fob ones for backup. I tried 2 of the 20; they were both read by the feeder. So I have 20 backups at $0.35 each. They are incrementally wider than the OEM tags, but do not weigh any more.To the reviewers who say the fobs do not work, the product info states125kHz ID key fobs tags (Read only), Compatible with standard EM ID access devices or ID reader, other universal frequency of unencrypted 125kHz tags like EM4100/4102So 125 kHz , read only was specified. Unencrypted was specified. Standard EM4100/4012 was specified. I was lucky that my RFID pet feeder operates on those parameters. which seem pretty standard. I noted that each fob has an assigned number. That is why I chose them because I noted that the tags that PetLibro sent me had a number which was recognized by the reader. At $0.35 each I figured a purchase was worth the risk.

Funcioma al pelo, según lo esperado

Dice tener una frecuencia compatible y no sirvió para nada, no se pudo configurar

Works perfect for ZkAccess system. Should work on others there are read only so as long as you can assign a card number on your system then they should work.

Excelente tag para puertas electrónicas

Estupendo delivery

Does not work with encrypted fobs readers on same frequency. Should say that in text.