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Kensizer Soil Tester, Soil Moisture/pH Meter, Gardening Farm Lawn Test Kit Tool, Digital Plant Probe,
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Amazon.com: 4 in 1 Ph Tester, Pool Water Ph Tester Ph/Ec/Tds/Temp Tester, Pool Water Test Kit Multifunction Water Quality Detector for Pool Drinking Water Laboratory : Patio, Lawn & Garden
