A Simple Way to Check Your Water 

Check your water’s TDS level quickly and easily with our compact digital TDS Meter. Simple to use, easy to carry, and ideal for testing water at home.

SCIENTIFIC CONTEXT

What Does a TDS Reading Tell You?

TDS stands for Total Dissolved Solids — measuring the aggregate concentration of dissolved minerals, salts, and inorganic compounds in water in Parts Per Million (PPM).

PPM Scale Reference Guide

Standard water testing spectrum recognized by drinking water standards.

Ideal Drinking Zone: 50–150 PPM
  • 0–50

    Pure / Ideal

    Micro-filtered, reverse osmosis, or distilled water with minimal mineral content.

  • 150–250

    Good Mineral

    Acceptable mineral drinking water. Common for natural spring sources.

  • 250–400

    Fair / Hard

    Higher mineral presence; typical of unfiltered municipal or deep groundwater.

  • 400+

    High TDS

    High dissolved solids concentration. Water filtration or audit recommended.

Scientific Note: A digital TDS meter quantifies electrical conductivity generated by dissolved mineral ions and salts (such as calcium, magnesium, and chlorides). It is intended as an everyday water monitoring tool and does not test for bacteria, pathogens, or organic chemicals.