
Understand Your Nutrient Solution
Measuring different aspects of your growing medium can tell you exactly what your plants need and what they are missing. Ensure the perfect nutrient balance for a better yield with pH and conductivity testers.

Direct Soil Conductivity Tester
Specifically designed to directly measure soil conductivity (EC) and temperature with steel penetration electrode.
Nutrient Analysis Photometer
Measure essential nutrients in your fertilizer enriched solutions right on the spot.
Features an innovative optical design to ensure consistency between measurements.
To save valuable laboratory benchtop space, the HI83303 doubles as a professional pH meter with its digital pH/temperature electrode input.
The HI83325 is designed for the agriculture industry to measure nutrients including ammonia, nitrate, and phosphorus.
Monitor like a scientist. Grow like a professional.
24-hour continuous pH, EC/TDS, and temperature monitoring of your nutrient solution.
Our GroLine Monitor is made by growers and scientists alike who are committed to helping you take your growing operation to the next level. Choose the GroLine Monitor that works best for your testing environment:
To Help You Get Started

We offer solutions and reagents in a variety of sizes and certifications to meet all your testing needs.

The right electrode can make the most difficult samples easy to measure. See the full Hanna Line and find the right one for you.