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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. The Intellical ISENH4181 is a digital, combination ammonium ion selective electrode (ISE) with a non-refillable, double junction reference and built-in temperature sensor. The Intellical ISENH4181 electrode is intended for laboratory use. The ISENH4181 is ideal for measuring ammonium concentrations in wastewater, drinking water and general water quality applications. The ISENH4181’s solid-state sensor design eliminates membrane replacement and allows for dry storage of the electrode.
Hach has a complete portfolio of instruments and chemistries with support and services to help you get the right results.