HM Digital C342 TDS and EC Calibration Solutions, 342ppm

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

Features:

• NaCl calibration solution, 342 ppm
• Comes in lightweight HDPE plastic bottles
• Sealed with a coated foam liner
• 3 oz. bottles (90 ml)

Solution Conversions:

• 342 NaCl =
• 362 as KCl ; 478 as "442" ; 700 µS