Incorporating a cup sensor, the Elcometer 138E Conductivity Meter can measure the conductivity of a solution from a few drops of sample.
The user can place a sample on the instrument's sensor or soak the instrument's sensor directly into the solution being measured. The Elcometer 138E is suitable for a wide range of applications including: soluble salt concentration, conductivity (EC) of solutions.

Automatic range switching gives a wide measurement range from 0 μs/cm to 20 mS/cm
Out-of-range and low battery indicator
Automatic temperature compensation (ATC) and manual or automatic one- or two-point calibration
LCD screen with indicator and error message, two-line display
User-replaceable integrated 2-pin, stainless steel electrodes provide chemical resistance
Available as part of the Bresle Salt Kit
The Elcometer 138E Conductivity Meter is also available as an option as part of the Elcometer 138B Basic Bresle Salt Kit.