Review on Hanna Instruments HI701 Handheld Colorimeter by Byron Forman
Simple and effective test
Compared to the HI 729 fluoride test, this one is very simple. Before adding a reagent, zero the instrument with a water sample. After zeroing, add the powdered reagent, shake for 20 seconds, and then wait two minutes and thirty seconds to get the test result.
- Colorimeter
- Some errors
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