Designed for water quality experts, the advanced Hach HQD laboratory meters take the guesswork out of measurements. All HQD meters feature an advanced yet simple user interface that does not require manuals or training to operate. HQD meters connect with smart Intellical electrodes and automatically recognize the testing parameter, calibration history, and method settings to minimize errors and setup time.

Choose from 3 models, including the dual-input HQ440D and single-input HQ430D versions. These multi-parameter meters offer the ultimate in versatility and redundancy - perfect for budget-constrained laboratories.

Interchangeable Intellical probes for measuring pH, Dissolved Oxygen (DO), Conductivity, Total Dissolved Solids (TDS), Ammonia, Ammonium, Fluoride, Nitrate, Sodium, LBOD, and RedOx (ORP).