This logger sensor is based on a probe with two flat electrodes with known surface area and distance between them. A signal is supplied to the electrodes and by testing the signal behaviour, the conductivity of the solution is calculated.
The logger sensor has three ranges for displaying the solution conductivity:
µs/cm – micro Siemens per centimetre
mg/L – milligram per Litre
ppm – part per million
( 900-225 )