HI 739 Checker®HC Handheld Colorimeter – Fluoride High Range  Easier to use and more accurate than chemical test kits     SPADNS method ±0.5 ppm ± 5% of reading accuracy Large, easy to read digits Auto shut off Dedicated to a single parameter     Designed to work with HANNA’s reagents Uses 10 mL glass cuvettes Small size, big convenience     Weighing a mere 64 g (2.25 oz.), the Checker®HC easily fits into the ... Read More »

HI 729 Checker®HC Handheld Colorimeter – Fluoride Low Range Easier to use and more accurate than chemical test kits SPADNS method ±0.05 ppm ±5% of reading accuracy Large, easy to read digits Auto shut off Dedicated to a single parameter Designed to work with HANNA’s reagents Uses 10 mL glass cuvettes Small size, big convenience Weighing a mere 64 g (2.25 oz.), the Checker®HC easily fits into the palm of your hand ... Read More »