HQ440D HQD

he Hach HQ440D is a high-performance benchtop meter with two measurement channels. It supports a wide range of parameters—including pH, ORP/mV, conductivity, TDS, salinity, resistivity, optical dissolved oxygen (DO), biochemical oxygen demand (BOD), temperature, and multiple ion-selective electrodes (ISE) such as ammonium, nitrate, fluoride, chloride, and sodium (ONLY PH PROBE INCLUDED OTHER PROBES NOT INCLUDED IN THE EQUIPMENT)