3-in-1 TDS PPM Meter Home Drinking Water Quality Test Pen EC Meter Thermometer

A colorful TDS chart on the back to explains ppm readings. If TDS≤40, the backlit color is green,for Drinking water. TDS: 0 - 9990 ppm (parts per million). If TDS>40, the backlit color is red,for No-drinking water.
A colorful TDS chart on the back to explains ppm readings. If TDS≤40, the backlit color is green,for Drinking water. TDS: 0 - 9990 ppm (parts per million). If TDS>40, the backlit color is red,for No-drinking water.

The ISPRING TDS meter is a digital instrument that measures the TDS (Total Dissolved Solids), in the scale of ppm (parts per million) which indicates the amount of solid dissolved in the water. The lower the TDS, the purer the water. EPA suggests that the TDS of drinking water should be below 500 ppm. Besides the purity, water temperature also impacts TDS value. ISPRING 3-button TDS meter features 2 sensors, 1 for TDS and 1 for temperature.

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