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Complete Grow Tent Packages

Complete Grow Tent Packages

Start growing indoors today!

Complete Nutrient Packages

Complete Nutrient Packages

From beginner packages to advanced!

Hydrobuilder Warehouse Deals

Grow Tent Blowout Sale

Hydrobuilder grow tents on sale now!

Hydrobuilder Learning Center

Expert growing advice and tips!

TDS, PPM, EC Meters

Grow Hydro Sale! 5 Percent Off Hydroponic Systems 5 Percent Off Blue Lab Meters 3 Percent Off Reservoirs

24 Product(s)

Set Descending Direction
per page

Grid List

24 Product(s)

Set Descending Direction
per page

Grid List

Need to test total dissolved solids (TDS), electrical conductivity (EC) or parts per million (PPM) of your nutrient concentration? Hydrobuilder carries them all and has the tech support team to help you pick the one that will work best for you. Make sure your plants are receiving the right concentration and test your nutrient solution accurately. Meters that measure on the 500 or 700 measuring factor calibrated for NaCl or KCl solutions to suite your needs and nutrient solution guide.