TCON, conductivity measuring sensor is specially using graphite electrode which is very stable. Graphite can only conduct but not respond to other physical reaction. 

And graphite is acid and alkali resistance. Able to wash with acid, and fluoric acid resistance is <10%.

Main application range: liquid material or acid‐alkali neutralization, also high polluted wasted water, boiler, cooling water. Electrode is stain‐ free.