US$ 112.50
For Stealth-RO™ Systems
The 40-gallon Premium Reservoir Lid measures 39
with indicator lights for each type
Water normally and monitor plant response
Mix 1–2 teaspoons
HANNA GroLine Hydroponic Monitor for pH, EC, TDS, Temperature SHIP_FR20 For Stealth-RO™ SystemsHanna 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
US$ 112.50
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