Hard water is the water that has a high mineral content such as calcium and magnesium carbonates. The cause of such hardness of water is due to contact of water with depositions of such minerals. This in turn results in the increase of ions in the system as Ca2+, Mg2+, and HCo3-. Thus, this hardness in the water causes scaling which affect the efficiency of the system. Such problems are prevalent in boilers, cooling systems, plumbing appliances etc. A varied range of tools are required to measure the Total hardness and the tools also depend on the appliances or systems to be tested on. WaterEx provides a gamut of tools that assist in measuring the harness. It is crucial to analyse due to softener and demineralisation processes. Due to the accuracy of the results WaterEx's tool kit is used for industrial purposes as well.