This is a basic RFID tag used for presence sensing, etc. Works in the 125kHz RF range. These tags come with a unique 32-bit ID and are not re-programmable. Card is blank, smooth, and mildly flexible.Features:EM4001 ISO based RFID IC125kHz Carrier2kbps ASKManchester encoding32-bit unique ID64-bit data stream [Header ID Data Parity]Dimensions: 2.13 x 3.35 x 0.03″ (54 x 85.5 x 0.8mm)
