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Essentials EC Meter reader. Easy to use EC tester. Tells you the EC of liquid.Low battery alert.Wate..
Easy to use pH tester. Tells you the pH level of liquid.Low batter alert.Water resistant.Shock resis..
HM Digital COM-100 Waterproof Professional Series. EC/TDS/TEMP meter...
HM Digital PH-200 Waterproof Proessional Series pH Meter.The PH-200 is a highly accurate meter that ..
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