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The HI801 Spectrophotometer is the only one of its kind. This portable and compact meter makes measurements possible within the entire spectrum of visible light.
The HI83303 Multiparameter photometer for aquariums and ponds measures no less than 12 parameters for water quality of aquariums and ponds.
The complete HI83326 Multiparameter photometer for swimming pool and spa measures the 11 most important parameters for swimming pools.
The HI83399 is a compact, multi-parameter photometer for measuring the most important parameters of the quality of water and waste water.