Horiba 0030-10D [3014028323] Needle DISFET pH Electrode , 0-14 pH Range

This electrode is designed for measuring inside foodstuffs such as fruits, vegetables and bread. It features a sharp pointed sensor which reads the pH of samples below the surface. 
For example, it can measure vegetables beneath the skin and bread inside of the crust. This electrode eliminates the need for coring or removing samples for testing and can also save time and money that broken glass electrodes would cost.