This kit comes complete with everything you need to comply with ISO 8502-6, ISO 8502-9, The Bresle Method. The Elcometer 135B is a self-adhesive rubber film patch with a sealed compartment used for taking samples of soluble salts.
The Elcometer 138 Bresle Kit includes the Elcometer 138 conductivity meter. The cartridge type sensor can be easily replaced when necessary and displays conductivity in a range of units including: S/cm, S/m, ppm and % salinity.