1. Water - Resistant Lightweight Digital Handheld Pocket Refractometer!

2. Check oxygen concentration by a refractometer.

3. The gemological refractometer is characterized by small volume and less weight.

4. Using refractometer mensurate index of refraction to forecast the output of liquorices ointment has developed and the best condition was ascertained by experiment.

5. Please read the Operation Manual carefully before using the Refractometer.

6. Actual humidity measurements in the boundary layers have been made with a microwave refractometer.

7. The composing and controling principles of microcontroller control system of computerized subjective refractometer are introduced.

8. Objective: To evaluate the significance of fluid therapy in premature infants using a drop of urine for measuring urine osmolarity value with refractometer.

9. Measure pH of the seawater by a pH meter. Measure salinity by a refractometer.