These UID writable 125kHz RFID tags are fully compatible with 12v Black Box RFID readers and feature an adhesive backing for easy application.
25mm Dimentions: 25mm x 1.3mm
15mm Dimentions: 15mm x .75mm
Important Note:
-These tags ship with no default ID. You'll need an RFID programmer to assign a unique ID before use. You can purchase one here. Programming instructions below.
-Smaller units have shorter read range. See more details below: