HANNA GroLine Hydroponic Monitor for pH, EC, TDS, Temperature SHIP_FR20 non-burning formula is safe to

non-burning formula is safe to use around children

Primarily used with duct fan systems in various air circulation and ventilation projects including hydroponic grow rooms and tents

6’ Power Cord with On/Off Switch

with indicator lights for each type

HANNA GroLine Hydroponic Monitor for pH, EC, TDS, Temperature SHIP_FR20 non-burning formula is safe toHanna 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