This TDS Tester Calibration Solution is for calibrating the TDS-EZ Tester.
* NaCl calibration solution
* Sealed with a coated foam liner
* 3 oz. bottles (88.7 ml)
* Good for 5-10 calibrations
* Shelf life of 6-9 months
For use with TDS-EZ Water Quality Tester
Not for use with Hanna TDS Tester