Water-i.d.® FlexiTester® provides you with access to semiprofessional water analysis. While FlexiTester®s are -like Pooltesters- visual measurement devices, the arrangement of the measured colour to the scale – and the determination of the measurement value – is much more precise with FlexiTester®s because the measurement is compared to an ongoing colour scale on a parameter-stick. There are no measurement results “between” individual colour scales. Ergonomic design and high-quality materials also simplify measurements. So far, more than 37 different parameter methods can be tested with the same basic model. Just a different parameter-stick and reagents are needed to extend your FlexiTester® kit.