Access control Reader/long range RFID Reader UHF ... < 30dbm (software programmable)support : ISO18000-6C EPC G2 and ISO18000-6B UHF tagpower supply : +12V DC ,3Afree software ... pack (C++, Powerbuild, VB.Net , C# and delphi demo program with source code , DLL & protocol)reading range : ~1 ... how to read & write the data into the tagexample code with source code (c++, Powerbuild,delphi , VB.NET & C# ...