... ).Auto ranging 30 to 130dB 2).16000 Records Data Logging Function 3).RS-232 Interface TES-1352H Datalogging Decibel Meter(RS-232 Interface) Auto ranging ... Instruction manual , Battery , Carrying case , Adjustment screwdriver , Software , Wind shield, RS-232 connecting cable, 9 Pin to 25 Pin gender changer, 3.5 f plug