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Graflsoa Portable Water Quality Tester with PH, TDS, and EC Measurement, High-Precision Display, Automatic Calibration, Durable Sealing Design for Wet Environments, Compact and Easy to Use.

<ul><li>The top adopts nice sealing process to prevent energy consumption in wet environment.</li><li>Pen cover design, easy to carry, not easy to damage, no loss of sensitivity.</li><li>Manual one key automatic calibration mode, solve the problem that the long storage time of automatic calibration can not be accurately calibrated.</li><li>Portable water quality analyzer, home use, hospital natatorium, water plant laboratory, aquaculture.</li><li>High definition display screen, quick and simple accurate measurement, large digital display more clearly.</li></ul>

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Portable water quality analyzer, high definition display screen, manual one key automatic calibration mode, the top adopts nice sealing process to prevent energy consumption in wet environment, accurate measurement, simple and quick. Specifications: Type:     Single Yellow PH Pen    White TDS Pen &amp; Yellow PH Pen     White TDS Pen &amp; PH Pen     Blue TDS Pen &amp; Yellow PH Pen     Blue TDS Pen &amp; White PH Pen (optional) Measuring Project: PH, TDS&amp;EC TDS Measure Range: 0-9990ppm TDS Tempreture Measure Range: 0.1-80℃ / 32-176℉ TDS Error: ±2% TDS Cell: 1 * CR2032 Button Cell, 3V 240mAh (included) TDS Probe: Titanium Alloy  PH Measure Range: 0-14 PH Accuracy: 0.01 PH Error: ±0.05 PH Cell: 2 * LR44 Button Cell, 3V 240mAh (included) PH Probe: Glass Electrode Package Weigth:    106g / 3.74ounces    190g / 6.70ounces Package Size:    150 * 30 * 20mm / 5.91 * 1.18 * 0.79in    200 * 110 * 20mm / 7.87 * 4.33 * 0.79in Packing List: 1 * PH Test Pen 1 * TDS&amp;EC Test Pen 6 * Corrective Powder 2 * Instruction Book