The TMT-300C from TROI LLC is a RFID Tag with Operating Frequency 865 to 928 MHz, EPC Memory 128 Bits (96 Bit Unique No. Encoded), TID Memory 64 Bits, User Memory 512 Bits, Operating Temperature -50 to 300 Degree C. Tags: RFID Metal Tag. More details for TMT-300C can be seen below.