YARONGTECH125khz key fob, access rfid tag em4100 chip for access control (pack of 10)

Works amazing with Grandstream door phones, much cheaper than when purchased from Grandstream official channels. Most had normal reading range, however 1/10 had to be pressed up right to door phone to work, but overall great price, great value, great product, would purchase again.

Doesn’t work with most entry systems in my area. (No HID ICLASS, No HID Prox)Useful for my company punch clock card into Jakcom smart ring.

Worked well with my DoorBird video doorbels

good product, good price

Worked perfectly.