DigitalĀ MesurerĀ EC VanguardĀ has an automatic calibration and an automatic temperature compensation(ATC). It is usedĀ to make reliable measurements of pH. Easy to use.
To balance this unit you must have the liquid calibrator value: 4.0 and 7.0 (the liquid is not included).
You will also findĀ Digital EC meter Vanguard at www.calle25.com
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