Apera Instruments AI422 EC400S Portable EC (Conductivity)/TDS/Salinity/Resistivity) Meter Kit, GLP Data Management (500 Groups of Data Storage), USB Data Output, 1.3" Height, 3.4" Wide, 7" Length

Takes quick and accurate measurements of EC, TDS, salinity, and resistivity simultaneously in a wide measuring range (0 to 200 MS/cm)

GLP data management (500 Groups of data storage) with PC software support, USB data output and power supply

Quick and easy 1 to 4 points Auto calibration with calibration reminder function (premixed standard solutions included)

IP57 waterproof and dustproof, ideal for use in harsh environments

The large backlit LCD displays EC and temperature simultaneously along with icons of Stable readings and Finished calibrations