Naturewater TDS Measuring Device Digital Conductivity Meter Tester

With this TDS meter, you can measure the conductivity of osmosis water, tap water, rainwater, mineral water, and more. The device determines the total dissolved solids (mobile ions, including salts, minerals, and metals) in mg per volume of water (mg/L) or particles per million (ppm).

Simply dip the TDS meter into the water briefly and read the exact ppm value on the large LCD display. Pure water or osmosis water has a value of about 10-20 ppm. If the value exceeds 60 ppm, the filters should be replaced. In contrast to filtered water, regular tap water has a conductivity of about 200-500 ppm.