When stored in KCl solution, they have long life. Low leakage is achieved by using KONBO™, a product combining modern ceramic and conductive polymer technology, as the liquid junction. Electrode resistance is low, an important consideration when making low-noise measurements. 

Although the internal filling solution contains KCI, the low fluid leakage means Dri-Ref may be used in combination with ion selective electrodes, including those for K+ and Cl-, without significant contamination from the reference electrode.
The Dri-Ref electrodes are chemically resistant to strong acids, alkalis and organic solvents. In addition, the long, thin FLEXREF may be easily manipulated to accommodate a difficult experimental setup.

SUPER-Dri-Ref

Most recently, WPI's research staff has created an exciting new addition to the field of reference half-cell electrodes. SUPER-Dri-Ref, a reference electrode with a diameter of 2 mm, does not leak electrolyte at all. Exhibiting the electrical stability of a classic flowing junction reference cell, this electrode exhibits low resistance and a stable half-cell potential essentially independent of sample electrolyte concentration. SUPER-Dri-Ref is ideal for small volume and low salt concentration measurements.

Micro-Reference Electrode

Only 450 µm in diameter and 2 inches long, WPI's new DRIREF-450 reference electrode can be used along with other sensors in space-restricted areas and very small sample volumes.

New Luer-Tip Reference

The male luer fitting at the front of this new DRIREF-L allows it to be easily connected to a female luer port (see WPI's luer fittings kit) to form a tight seal -- a very convenient installation for a flow-through system.