Hanna HI98131 GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester Indee Import This high-airflow duct filter is

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Hanna HI98131 GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester Indee Import This high-airflow duct filter isThe HI98131 is a slim, lightweight, and waterproof pocket tester that measures pH, conductivity (EC), TDS (ppm), and temperature. Simple, two button meter operation and advanced features, including a selectable EC to TDS conversion factor (0. 5 500 ppm and 0. 7 700 ppm). for your essential testing. All measurements in a single, hassle free tester. Quick Cal solutions to calibrate pH and conductivity all at once with a single solution. Perfect for