Hanna

GroLine general purpose cleaning solution that can be used for a variety of applications. Electrodes can become dirty from use and will produce ina...

The Hanna Instruments GroLine Waterproof Pocket pH/EC/TDS/Temp Tester is a slim, lightweight, and waterproof pocket tester that measures pH, conduc...

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

high quality pH 4.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot ...

Groline pH 7.01 Calibration Solution is a high quality pH 7.01 calibration buffer that is NIST traceable and supplied with a Certificate of A...

The HI1285-8 multiparameter probe measures pH, EC/TDS, and temperature in one convenient, rugged probe. Use with the HI981420 GroLine Monitor...

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 GroLine HI98118 pH/temperature tester is our latest pocket meter for measuring the pH of a hydroponic nutrient solution. This modern look...

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...