The BT-2R from TROI LLC is a RFID Tag with Operating Frequency 860 to 950 MHz, EPC Memory 128 Bits (96 Bit Unique No. Encoded), TID Memory 64 Bits, User Memory 512 Bits, Operating Temperature -50 to 200 Degree C. Tags: RFID Metal Tag. More details for BT-2R can be seen below.