Continuous Nutrient-Solution Monitoring

The Hanna GroLine HI981420 monitors pH, conductivity (EC and TDS), and temperature in hydroponic nutrient solutions. Designed for hydroponics, aquaponics and greenhouse applications, it provides around-the-clock measurements so growers can check key solution conditions throughout the day rather than relying only on occasional spot readings.

What It Measures

• pH: Monitor nutrient-solution acidity as part of your feeding and adjustment routine.
• EC/TDS: Track conductivity and the corresponding TDS reading when evaluating solution concentration.
• Temperature: Keep solution temperature alongside your pH and conductivity measurements.

Calibration Features

• Quick Cal: Calibrate pH and EC using a single Quick Cal solution.
• Good Laboratory Practice (GLP): Includes GLP functionality to support your calibration routine.

Applications

Use continuous monitoring in hydroponic nutrient reservoirs, greenhouse nutrient-solution management and aquaponic systems. Measurements can help guide checks and adjustments, but the monitor does not replace a crop-specific feeding plan or laboratory nutrient analysis.

Model and Setup

• Brand: Hanna Instruments.
• Series: GroLine.
• Model: HI981420.
• Parameters: pH, EC/TDS and temperature.

Follow the manufacturer's instructions for installation, calibration, probe care and maintenance. Confirm the required measurement range and installation arrangement for your system before purchasing.