Soil EC Meter Digital Soil Tester with Backlight Screen Portable Soil Salinity Tester for

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pH-2 Pro Water Quality Pen Digital pH Meter 0.01 Accuracy Tester Pen -2.00~16.00 Measuring Range

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Digital 6 In 1 Soil PH Meter Fertility Soil Moisture Sunlight Ambient Humidity Temp Tester Monitor Detector Garden Soli Analyzer

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Portable Bee Tools Honey Refractometer 58-90percent (sugar Content) Honey Concentration Meter

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SMART SENSOR ST335A LCD Digital Refractometer Portable Handheld Honey Refractometer ATC Sugar

Antifreeze Refractometer Coolant Tester for Checking Freezing Point, Concentration of Ethylene

New 3 In 1 Hand Held Grape & Alcohol Wine Refractometer (Brix, Baume and W25V/V Scales)

Soil Tester Multiple Function Large Screen Electronic Digital Display Soil Moisture PH Temperature

PH Meter Digital PH Tester 0.01 Resolution High Accuracy Backlits Display PH Meter For Household Drinking Water 0-14PH

4 In 1 Water Quality Tester pH/EC/TDS/Temperature Meter IP55 Waterproof Automatic Shutdown

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5-in-1 Multifunctional Water Quality Analyzer Portable Pen Type EC/TDS/S.G/SALT/TEMP Test Meter