The CDH-SD1 is a combination conductivity, TDS, and salt meter with a real-time SD card datalogger. CE-compliant, the meter features an LCD with green light backlighting, automatic calibration ...

This time, my focus is on a cheap TDS meter. TDS meters are small hand-held devices used to indicate the Total Dissolved Solids in a solution, usually water. Since dissolved ionized solids (such as ...