The Siemens 6GT2810-3AC10 is a SIMATIC RF642L SmartLabel PET — a printable, on-metal UHF RFID label built for the RF600 system. It operates in the 902 to 928 MHz band (FCC) and follows the EPCglobal Class 1 Gen 2 / ISO 18000-63 protocol, so it works with standard UHF readers that support that air interface. The label measures 50 x 22.5 x 1.65 mm, with a white PET top side that accepts thermal-transfer printing. It is one-side adhesive for direct application to metal surfaces.
Minimum order quantity is 500 units (one roll). This is a standard label roll — you buy the full reel, not singles. Because it's an active, mature part, lead time is typically Siemens standard for RFID consumables — no broker or surplus channel needed.