HQD HQ440D Laboratory Sodium (Na⁺) Ion Meter Package with ISENA381 Ion Selective Electrode

Designed for water quality experts, the Hach HQ440D Laboratory Multi-Meter is an advanced laboratory meter that takes the guesswork out of measurements. HQD meters connect with smart IntelliCAL^Ⓡ electrodes that automatically recognize the testing parameter, calibration history, and method settings to minimize errors and setup time. The advanced HQD Laboratory Meter is designed to withstand years of continuous lab use. HQD meters feature a simple user interface that does not require manuals or training to operate. IntelliCAL ISENa381 is a digital, combination, sodium ion selective electrode (ISE) with a refillable double junction reference and built-in temperature sensor. The electrode measures sodium concentration in water samples. The laboratory version of this ISE is shockproff with its Zeonor plastic body. The ISENa381 is ideal for measuring sodium concentrations in wastewater, drinking water and general water quality applications.