The document describes a microprocessor-based conductivity meter used for measuring the conductance of municipal and industrial aqueous solutions, crucial for assessing water quality across various industries. It outlines the meter's applications in diverse fields such as chemical analysis, laboratories, and agriculture, highlighting its capability to measure conductivity, resistivity, TDS, and temperature with high accuracy. Two models are detailed: an economical version for basic use and an analytical version designed for laboratory and research applications.