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The HI991300 is a slim, lightweight, and waterproof portable meter that measures pH, conductivity (EC), total dissolved solids (TDS) and temperature with a single amplified probe. The meter operation is simplified with two buttons. One is used for on/off and for calibration while the other is used to switch between the measurement modes. The HI991300 has advanced features including a selectable EC to TDS conversion factor (0.45 - 450 ppm and 1.0 - 1000 ppm).
3 in 1 amplified probe with pH, EC/TDS and temperature sensors
Quick Cal Mode to calibrate pH and EC/TDS with one solution
EC to TDS Conversion factor selectable between 0.45 and 1.0Learn More