HM Digital 1000ppm Calibration Solution

For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges.

Benefits of HM Digital's TDS/EC Calibration Solutions

• Laboratory quality NIST-traceable solutions
• Solutions list alternate composition equivalents on the bottle labels.
• Bottles are a convenient 3 oz. (88 ml) size - neither too big nor too small.
• Bottles have a convenient wide mouth, allowing a user to simply insert the meter into a stable bottle (much easier to use than a wobbly Mylar pouch).