Application of 8305 AZ Handheld Electrical Conductivity EC Meter: ¡El 8305 AZ Portable Conductivity Meter can measure the Conductivity / TDS (Total Dissolved Solid) / Salinity and Temperature. It has a big LCD screen for multiple parameters display. Its Conductivity sensor electrode is highest durability with reliable measurements.¡El 8305 AZ Portable Conductivity Meter is default at "auto-ranging" mode. Auto-ranging mode will determine and select the range which gives you the greatest resolution and accuracy.¡El Conductivity, TDS and Salinity measuring function of 8305 AZ EC Meter all could proceed with the calibration easily by user. ¡El 8305 AZ Portable Cond. & TDS & Salinity Meter could link to PC via USB cable to capture the on-line data, and display the Conductivity, TDS, Salinity readings with real-time output. User can retrieve file, save the data for operating data analysis, record statistics....versatile functions according different purposes.¡El 8305 AZ Portable Cond. & TDS & Salinity Meter could be the best Water Quality tester for all professional measuring purposes, including the LAB, water treatment business, Aquaculture, Aqua farm, swimming pool or other related industry.8305 AZ Portable Cond. & TDS & Salinity Meter was being designed and manufactured by AZ Instrument, a well experienced manufacturer for Environmental Measuring Instrument.