... soundingPROTECTIONFull ProtectionDischarge, overcharge, and overload protectionPHYSICALDimension, DXWXH (mm)330X100X140Net Weight (kgs)566.5ENVIRONMENTOperating Environment0~40 Degrees Centigrade, 0~90% relative humidity ... (non-condensing)Noise LevelLess than 40dBINTERFACESmart RS-232Support Windows family, Linux, IBM Aix, Sun Solaris ...