This is a glass, cylindrical RFID tag; it's very similar to those implanted into pets for identification purposes. Each tag comes with a unique 32-bit ID code aAnd is not reprogrammable. The carrier frequency of this tag is 125kHz, so it works great with our ID-2, ID-12 and ID-20 RFID readers.

We tested this RFID tag with one of our ID-12 readers and measured a maximum read distance of about 10mm.

Features:

•     - Tiny,  implantable RFID tag
•     - 32-bit unique ID - non-reprogrammable
•     - 125kHz read frequency
•     - EM4001 ISO based RFID IC
•     - Manchester encoding

Dimensions:

•     - Width: 12.25mm
•     - Diameter: 1.93mm