What is cell constant in conductivity measurement?

Cell constant (K) is the geometric factor of a conductivity sensor relating measured conductance to conductivity: Conductivity = Conductance x K. Cell constant = L/A (electrode distance/electrode area) in cm^-1. Low cell constants (0.01-0.1) for pure water (low conductivity), medium (0.1-1.0) for general purposes, and high (1.0-10) for high conductivity solutions. Cell constant is determined through calibration with known conductivity standards. Using wrong cell constant gives incorrect conductivity readings.