Lutron CD-4318SD Precision Conductivity Meter, TDS, Salt, SD Card

\nSD Card real time data recorder + TDS, Salt\n20 uS/200 uS/2 mS/20 mS/200 mS\nPRECISION CONDUCTIVITY METER\nModel : CD-4318SD\n* Real time data logger, save the data into the SD memory card and can be downloaded the Excel, extra software is no need.\n* Functions : Conductivity, TDS, Salt, Temp.\n* High conductivity resolution, 5 ranges :\n 20 uS x 0.01 uS, 200 uS x 0.1 uS,\n 2 mS x 0.001 mS, 20 mS x 0.01 mS,\n 200 mS x 0.1 mS\n* TDS measurement, 5 ranges :\n 20/200/2,000/20,000/200,000 PPM.\n* Pt glass electrode, high performance for pure water low conductivity measurement.\n* Automatic temp. compensation.\n* It can select Temp. Coefficient of measurement solution.\n* Record ( Max., Min. ), Data hold, zero adjust.\n* RS232/USB computer interface.\n* Patented.\n