Characteristics:
WYV-S Digital Refractometer is the leading refractometer featuring wide range, high-precision and multi-wavelength. It can fast and accurately measure the refractive index, average dispersive partial dispersion (i.e., the refractive index of eight common wavelengths, including 706.5, 656.3, 589.3 587.6, 546.1, 486.1, 435.8, 404.7nm) and sugar solution mass fraction (Brix) for transparent or translucent solid or liquid substances. The instrument has following features and functions, such as user-friendly interface, fast test speed, good repeatability, temperature correction, data storage, U disk storage and USB communication interface.
 
Specifications:

Refractive index measurement range(nD)	1.300000–1.700000(liquid) 1.300000–1.950000(solid)
Multi-wavelength	706.5, 656.3, 589.3 587.6, 546.1, 486.1, 435.8, 404.7nm
Indication error(nD)	±0.00005
Measurement resolution(nD)	0.000001
Mass fraction of source solution (Brix) readout range	0 – 100%
Indication error(Brix)	±0.1%
Measurement resolution（Brix））	0.01%
Temperature display range	0 – 80℃
Temperature display resolution	0.1℃
Output	USB or U disk
Power	AC220V – 240V, 50Hz±1Hz