The calibration solution C-342 (TDS 342 ppm NaCl) is used for the recalibration of the instruments TDS-3, TDS-3 SMART and COM-100 from HM Digital, amongst others. For optimum performance or when measuring in wide or different TDS and EC ranges, the meter should be recalibrated regularly.
The 342ppm NaCl calibration solution is supplied in lightweight HDPE plastic bottles and is sealed with a tamper evident cap. Contents: 100 ml.