HPC22 PET thin TK4100 RFID coin tag is a low-frequency (125kHz) passive RFID identification tag, designed with a transparent plastic film structure for discreet and flexible installation. With a 22mm round coin-style design, it combines a compact form factor with stable reading performance.Embedded with a TK4100 read-only chip, this RFID tag provides a unique and fixed ID number, ensuring reliable identification and access control. The PET film material offers excellent durability, flexibility, and resistance to moisture, making it suitable for both indoor and light outdoor applications.Thanks to its thin and lightweight design, the tag can be easily integrated into cards, labels, plastic housings, or laminated products, without affecting appearance or functionality.