Conductivity Definition: Conductivity is the ability of a substance to transmit electric current. It is the reciprocal of resistance. The unit of measurement is Siemens/cm (S/cm). When the value is 10??, it is expressed as μS/cm, and when it is 10?3, it is expressed as mS/cm.  

The 138 series pen-style tester provides reliable measurements with simple and fast operation. This pen-style conductivity meter is compact and easy to carry, making it convenient for handheld measurements. It features an LCD display for reading measurements.  

This instrument is available in a variety of colors and can be supplied with calibration solutions and various packaging according to customer requirements.