Understand the Essentials
Plants need plenty of sun, air, water, and nutrients to grow. But how can you make sure your plants have enough nutrients? Measuring different nutrient aspects of your soil can help you ensure your plants are strong and healthy, year after year.
GroLine pH Tester
This simple GroLine pH tester makes upgrading from chemical test kits easy.
GroLine Waterproof pH Tester
The GroLine HI98118 pH/temperature tester is our latest pocket meter for measuring the pH of a hydroponic nutrient solution.
GroLine Waterproof EC Tester
The HI98318 is our latest pocket meter for measuring the EC/TDS of a hydroponic nutrient solution.
GroLine Combo Tester
The HI98131 Hydroponic Waterproof Pocket Meter is a slim, lightweight meter that measures pH, conductivity (EC), total dissolved solids (TDS) and temperature.
Direct Soil Conductivity Tester
Specifically designed to directly measure soil conductivity (EC) and temperature with steel penetration electrode.
Parameter Testing Made Simple
The mineral content of your irrigation water and soil will vary in type and concentration depending on its source. It is important to recognize your nutrient profile, as some minerals can impact the growth of your plants.
Chemical Test Kits
Chemical test kits are a simple and affordable way to perform an accurate chemical analysis. The chemical test kits offer the advantage of being inexpensive but they do not provide the high degree of resolution or the objective nature of a photometer.
Checker® Handheld Colorimeters
Checkers are small, handheld colorimeters that provide higher accuracy results than typical chemical test kits. Offering improved technology, these portable colorimeters make measurement hassle-free with their simple design and easy to follow instructions.