Total Dissolved Solids (TDS) is a parameter used to classify drinking water. Typically expressed in mg/l, it indicates the amount of perfectly dry solid substance that remains after evaporating 1 liter of water. The higher the concentration of mineral salts, the lower the purity of the water. Ideal for all water purification applications, wastewater, aquaculture, and hydroponics. Features: - Hold Function: saves measurements for convenient reading and recording. - Auto-off function: the meter sh

Saves measurements for convenient reading and recording. Auto-off function: turns off meter after 5 minutes of non-use to conserve batteries. Automatic temperature compensation. Shift between TDS and Conductivity to test the filter water quality purity,to check the performance of your water filter, to check for hardness (1grain=17ppm). Specifications: Conductivity: 0-5000ppm TDS: 0-9990ppm Degrees Celsius: 0.1-80.0 °C Degrees Fahrenheit: 32.0-176.0 °F Accuracy: ±2% Size: about 15.2x3x1.4 cm. / 5