HANNA GroLine Hydroponic Monitor for pH, EC, TDS, Temperature SHIP_FR20 Mix 1–2 teaspoons

Mix 1–2 teaspoons

Water normally and monitor plant response

Current Culture® Under Current® Evolution

with indicator lights for each type

For Stealth-RO™ Systems

HANNA GroLine Hydroponic Monitor for pH, EC, TDS, Temperature SHIP_FR20 Mix 1–2 teaspoonsHanna GroLine Hydroponic Nutrients Monitor for pH,EC,TDS and Temperature The HI981421 GroLine Monitor provides 24 hour continuous monitoring of pH, conductivity (EC & TDS), and temperature in hydroponic nutrients solutions. Quick to setup, 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. Inline Probe Design for built in Hydro Monitoring