The HANNA HI 764 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate ...
The HANNA HI 770 Checker®HC is accurate and affordable. This portable handheld colorimeter features a resolution of 1 ppm (200 points) and ±2 ppm ±5 % of ...
The Hanna Instruments HI 775 is a hand-held colorimeter for testing alkalinity in fresh water. It is designed as an accurate alternative to chemical test kits.