Teacher BUNDLES – Not sold by Vernier The TI-Nspire teacher bundles included a TI-Nspire handheld along with a single license of the TI-Nspire Teacher Software....
The ideal test solution for an ORP electrode is a commercially-produced standard. Many companies sell ORP standards: Hach, Cole Parmer, and Hanna are three examples....
Generally, rinsing the electrode with distilled water after using should suffice. If the glass bulb looks dirty, you can rinse the electrode with warm water...