Prep your lab now. Ensure your testing success with our portable and benchtop meters - SHOP ALL
Hydroponics
Manage and monitor your growing nutrients on-the-go with our reliable pH and EC Meters.
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.
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.
GroLine Waterproof Combo Meter
One combined, pre-amplified pH, EC, and TDS (ppm) probe for hassle-free measurements. Get the HI9814K Kit, complete with everything you need for better testing.
Nutrient Analysis Photometer
Measure essential nutrients in your fertilizer enriched solutions right on the spot.
Sophisticated
Features an innovative optical design to ensure consistency between measurements.
Advanced
To save valuable laboratory benchtop space, the HI83303 doubles as a professional pH meter with its digital pH/temperature electrode input.
Tailored
The HI83325 is designed for the agriculture industry to measure nutrients including ammonia, nitrate, and phosphorus.
Monitor like a scientist. Grow like a professional.
HI981421-01GroLine Hydroponic Nutrients Monitor for pH, EC, TDS, and Temperature$499.99
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
Solutions & Reagents
We offer solutions and reagents in a variety of sizes and certifications to meet all your testing needs.
Electrodes
The right electrode can make the most difficult samples easy to measure. See the full Hanna Line and find the right one for you.