Connection and communication is the final consideration when selecting an electrode. It’s important to understand that not all electrodes connect to all meters. Some sensor connections are specific to a meter, brand, or manufacturer. Be sure to identify your connection requirements when replacing or purchasing a meter and electrode.
The BNC connector is the most versatile ,since it can be used with any meter that ues BNC, regardless of brand.
DIN, 3.5 mm, and screw type connections are generally proprietary to the meters they are supplied with.