Hydrion Chlorine test strips CH-300 are an easy, accurate and economical way of measuring the concentration of free chlorine in water and sanitising/disinfecting solutions.
The colour chart has matches at...
      ppm.
How to test solutions using chlorine sanitisers
Simply dip strip into solution for 1 second. Remove the strip and shake off excess solution.
Match to color chart within 5 seconds for accurate free chlorine measurement.
Please note: Our range of testing equipment are genuine Hydrion pharmaceutical / industrial / food grade quality and not cheap imports. Hence your readings will be instant and accurate as is required in laboratory conditions.