A Total Chlorine Checker (like the Hanna HI711) is a digital handheld colorimeter that measures combined and free chlorine levels in water.
The device works in a few easy steps:
- Zero the meter by placing a cuvette with an unreacted water sample into the checker.
- Add the reagent to your water sample, which will cause a pink tint proportional to the chlorine present.
- Read the results after a brief countdown to get a precise digital measurement in ppm (mg/L).
