Hanna GroLine Hydroponic Nutrients Monitor for pH, EC, TDS, and Temperature Stone Wool Some cultivars and growing conditions

Some cultivars and growing conditions may require higher doses of Calcium

Designed specifically for the dry ice extraction process

humid air through the carbon filter and out of the tent to hold temperature and negative pressure

incorporating seaweed into your plant care routine can help improve plant growth more effectively than synthetic fertilizers alone

Once primed

Hanna GroLine Hydroponic Nutrients Monitor for pH, EC, TDS, and Temperature Stone Wool Some cultivars and growing conditionsGrow better with GroLine. The HI981420 GroLine Monitor provides 24 hour continuous monitoring of pH, conductivity (EC or TDS), and temperature in hydroponic nutrients. Quick to setup and simple to use, this monitor was designed with Hydroponics, Aquaponics, and Greenhouses in mind. Make your nutrient solution easy to manage with the GroLine Monitor and combined pH EC Temperature probe. High and low alarms with LED indicator. Easy viewing on the large