굴절계
- HI 701 handheld chlorimeter for free chlorine
- HI 711 handheld colorimeter for total chlorine
- HI 96801 Digital Refractometer for General Purpose Sugars
- HI 96814 Digital Refactometer for Wine with Oechsei, Babo and Brix scales
- HI 96821 Digital Refactometer for Salt Measurements