The HD 2306.0 by Delta Ohm is a Portable conductivity meter which comes with a large LCD display for easy viewing of results. This tool measures conductivity, liquid resistivity, total dissolved solids (TDS) and salinity through the use of an assembly probe. These comprises of 4 ring and 2 ring conductivity temperature probes. The temperature is measured using the range of Pt100 ot Py 1000 immersrion. Also, calibration of this device is done automatically. It performs different conductivity calibration solution such as 147μS, 1413μS, 12880μS and 111800μS/cm. Plus, it is supported with variation function for reliable operation. This includes the maximum, minimum or average values.