The Hach sensION+ 5044 Reference Electrode is a double junction reference electrode with a glass body and internal gel electrolyte and 0.1M lithium acetate salt bridge. The reference probe has a large, replaceable ceramic diaphragm. The 5044 has a fixed 1 meter cable and banana connector for laboratory use with the Hach sensION+ MM374 Multimeter. The 5044 is recommended for use with all sensION+ half-cell ion selective electrodes (ISE) in drinking water, wastewater and general water quality applications.

The probe is easy to maintain and features a double junction design with internal gel electrolyte, making the 5044 difficult to contaminate. It's large ceramic junction provides substantial surface area for contact between reference electrolyte and sample, shortening the time required for measurement stabilization.