Used to test the TDS value of your water.
A TDS Meter indicates the Total Dissolved Solids (TDS) of a solution, presenting you an easy way to know your water's quality. The higher the reading is, the more potential impurities are present in the water.
For tap water whose source is surface water, the higher the reading is, the more potential impurities are present in the water. The average bottle of water has a TDS rating of no more than 50, anything higher is considered inadvisable to drink.