pH, EC & TDS
Testing your hydroponic solution's acid-alkaline (pH) balance, its electro-conductivity (EC), and its total dissolved solids (TDS) is critical to successful hydroponic gardening.
The pH of a solution determines the availability of plant nutrients for uptake. The acid-alkaline reading of liquids — unlike that of soil — can fluctuate quickly. Maintaining the perfect pH is critical for healthy plant growth. Read More
Total Dissolved Solids (TDS) is the amount of dissolved solids in water measured in parts per million. Hydroponic gardeners want to know their nutrient reservoir is carrying the most effective levels of solution for quick, superior growth. TDS testing can also be used to determine the effectiveness of water purification systems (including reverse osmosis), the purity of aquarium water and the like.
Electro Conductivity (EC) is a measure of a solution's ability to conduct electricity and is an easy way to determine its total salt content (nutrients). EC is measured in micro Siemans per centimeter or µS/cm. For purposes of converting EC readings to TD readings, 2 µS/cm equal one part per million of dissolved solids.
Sound confusing? Our professional-quality testing equipment makes it easy. pH meters give exact readings for establishing and maintaining the perfect acid-alkaline balance. We carry EC/TDS testers that are self-calibrating and automatically adjust for temperature differences. Need advice finding the perfect meter for your needs? Our expert staff can help.
The pH of a solution affects the availability and absorption of nutrients by plants.
Both EC and TDS are measurements of the strength of the nutrient solution.
You've taken a pH reading. Now what? These easy-to-use, pure solutions maintain ...
Assure accurate test results and long meter life with these professional quality ...
pH Test Indicator
General Hydroponics pH Test Indicator makes testing samples easy. Simply fill a test-tube halfway with nutrient, add a few drops ...
HANNA Combo Tester (HI 98129)
Fast, efficient, accurate and portable! HANNA Instruments Combo Tester offers highly accurate pH, EC/ TDS and temperature measurements in one ...
Handheld TDS Meter (TDS-3)
Ideal for consumer or commercial use. HM Digital's TDS Meter is highly efficient and accurate due to its advanced microprocessor technology. ...
General Hydroponics pH-Down
To maximize plant growth, the pH of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for ...