Conductivity Shield for Arduino Uno

by PyroCat @ elektormagazine.com: Conductivity is the ability of a material to transfer electrons. It is the opposite of the concept of resistivity which is well known to electricians.

Arduino January 6, 2017 by mixos

by PyroCat @ elektormagazine.com:

Conductivity is the ability of a material to transfer electrons. It is the opposite of the concept of resistivity which is well known to electricians. However, while we are used to address the topic of conductivity in the field of electronics, things get a little bit more complicated when we try to apply the concepts to chemical solutions such as salty water.

Conductivity Shield for Arduino Uno – [Link]