This document describes a portable and economical conductivity meter. It is a microprocessor-based handheld device that measures conductivity in a range of 0-19.99 mS or 0-1999 uS, depending on the model. It is waterproof, easy to use in both indoor and outdoor environments, and runs on lithium batteries that provide approximately 150 hours of power. The meter floats and has features like auto-power off, hold function, and replaceable electrodes. It is presented as a good choice for use in schools, labs, and manufacturing plants due to its affordable price and portability.