For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges.
NaCl calibration solution, available in 1000 ppm (only one bottle, this is not a kit!).
Comes in lightweight HDPE plastic bottles.
Sealed with a coated foam liner.
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NaCl solution
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Available in 1000 ppm
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3 oz. bottles (88.7 ml)
Solution Conversions
1000 NaCl = 1060 as KCl ; 1450 as "442" ; 2000 µS |