According to NTAG 213 manual, the “READ” command has the command code 0x30 and needs to be followed by one byte which designates the start page address. For .NFC tags are powered by the NFC reader using magnetic coupling (so called near field). You need to research the use of much smaller loop antennas which will control the distance over which you can power the transponder NFC tags. There was a great answer here from .