hanna

The HI981421 GroLine Monitor for Hydroponic Nutrients provides around-the-clock, continuous monitoring of pH, conductivity (EC & TDS), and temp...

Measure pH, conductivity (EC), and TDS (ppm) with the HI1285-6 multiparameter probe. Perfect for measurements in greenhouses, water treatment, and ...

GroLine storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes. It is ...

The HI9814 portable meter features a large multi-level LCD that displays both pH, EC, or TDS and temperature readings simultaneously. The pH readin...

The Hanna GroLine HI981420 Nutrient Monitor is the perfect tool for precision monitoring of your hydroponic, aquaponic, and greenhouse nutrient sol...

The HI9813-6 features the Hanna Instruments CAL Check that will allow the user to know when the probe needs to be calibrated or replaced. The meter...