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The Hanna Instruments HI98318U GroLine Waterproof EC/TDS (ppm) Tester is a next‑generation pocket meter designed for hydroponic growers who demand accuracy and simplicity. Slim, ergonomic, and only 0.7" thick, it fits comfortably in your hand while delivering precise measurements of electrical conductivity, total dissolved solids, and temperature. A large, easy‑to‑read LCD shows all key indicators, and intuitive two‑button operation makes calibration and testing fast and reliable. • Graphite sensor minimizes polarization for stable, repeatable EC/TDS readings • Simplified two‑button design for power and one‑point automatic calibration • Quick Calibration mode compatible with Hanna pH/EC Quick Cal solution for rapid setup
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The Hanna Instruments HI98318U GroLine Waterproof EC/TDS Tester is purpose‑built for hydroponics, giving growers a reliable way to measure fertilizer concentration and water quality in nutrient solutions. Slim, ergonomic, and easy to use, this pocket meter combines accuracy with convenience. A large LCD clearly displays EC, TDS, and temperature readings along with calibration and battery indicators, while simplified two‑button operation makes testing fast and intuitive.
Automatic calibration and temperature compensation further enhance accuracy. Simply immerse the sensor in calibration solution, and the meter automatically recognizes the standard (5.00 mS/cm in Quick Cal mode or 1.41 mS/cm in standard mode). The integrated temperature probe provides real‑time compensation, ensuring precise nutrient monitoring under variable conditions.
At Blue Tiger Scientific, we are proud to distribute authentic Hanna Instruments products. The following policies apply to all purchases made through our store.
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