Images are for illustrative purposes only
![](https://www.optikamicroscopes.com/optikamicroscopes/wp-content/uploads/2017/06/HRD_BENEFITS.jpg)
HRD Digital Refractometer
The refractive index of a substance is related to its specific density; a refractometer is used to measure the purity or the concentration of a sample when mixed.
Refractometers are suitable for a wide range of applications, which includes the control of blend ratios in light industrial applications and represents the ideal solution for users working in the food industry.
» Value for money solution
» Easy operation
» Built-in LED illumination
» Brix or scale specific (including ATC)
» Sturdy construction with rubber handgrip
ATC
Automatic Temperature Compensation
No need to worry about temperature
change during your measurement.
![](https://www.optikamicroscopes.com/optikamicroscopes/wp-content/uploads/2017/06/HRD-1_BENEFITS.jpg)
Model: HRD-300N
Digital Refractometer, Brix and Refractive Index.
Recommended for fruit juice analysis
Model: HRD-400N
Digital Refractometer, Brix, Salinity and Refractive Index
Recommended for salinity analysis.
![line line](https://www.optikamicroscopes.com/optikamicroscopes/wp-content/uploads/2016/11/line-2-900x2.jpg)
Model: HRD-500N
Digital Refractometer for Urine, Serum Protein and Refractive Index
Recommended for clinical analysis.
![line line](https://www.optikamicroscopes.com/optikamicroscopes/wp-content/uploads/2016/11/line-2-900x2.jpg)