Sigma-Aldrich® micro pH combination electrode, glass body
Sigma-Aldrich SupelcoDesigned with a Refillable Ag/AgCl reference half cell. These electrodes feature ultra thin insertion stems and miniature pH bulbs for measurement of the smallest of samples. Depends on the length, the extra long insertion stem allows this combination electrode to measure samples upto the bottom of 7 in. long NMR tubes. Sturdy and versatile probe for measuring small samples in cuvets and small lab glassware 0-14 pH.