Calibration Certificates for Thornton, 2-Electrode sensors are available for download at your convenience.
This database currently holds the most recent calibration certificate as of January 1, 2014. This is a free service to our customers. Upon completion of a brief, 1-time, registration you will receive a password for access to the database.
Simply enter the serial number of your conductivity sensor to view, download, or email a link to the Certificate.