The HI1285-9 inline multiparameter probe measures pH, EC/TDS, and temperature in one convenient, rugged probe. Use with the HI981421 GroLine Monitor to provide around-the-clock, continuous monitoring of pH, conductivity (EC & TDS), and temperature in hydroponic nutrient solutions.

In-line pH, EC, & TDS probe with exclusive PTFE non-clogging membrane.
Built-in temperature sensor ensures fast, accurately compensated readings even during sudden temperature fluctuations.
Specialized for hydroponics with a renewable junction for extended life.