HM Digital TDS Calibration Solution can be used periodically to re-calibrate your TDS meter or Water Quality Tester.
TDS Calibration Solution Specifications:
- NaCl solution
- 342 ppm
- Comes in lightweight HDPE plastic bottles
- Sealed with a coated foam liner
342 NaCl = 362 as KCl, 478 as "442", and 700 ÁS
Also known as Water Tester Solution, TDS Meter Calibration Solution, TDS Calibration Solution