Gemstone refractometer ER601-LED

Professional gemstone refractometer

Professionals who carry out many measurements with the refractometer know how important high-quality optics are. The ER601-LED refractometer has premium optical equipment. It shows scales in the best possible resolution as well as in well-lit quality and with a sharp image. Measurement results are clearly visible, even with many measurements, the professional works comfortably, quickly and precisely with this device and always achieves the correct measurement result. Thanks to the very high-quality optics, it is also suitable for complex investigations, such as the “distant vision” method or “spot” method.

Technical details:

■ Premium-quality gemstone refractometer with polarization filter
■ Measuring range: 1.33 – 1.83 nD
■ Includes a high-quality LED light source with a wavelength of 589 nm
■ High-end optical glass prisms with a resolution of 0.01 nD
■ Housing: cast aluminium
■ Dimensions (w x h x d): 30 mm x 80 mm x 125 mm
■ Weight: 358 g

You can find practical examples of investigations with this high-quality gemstone refractometer and for determining the refractive index of gemstones in the application article: Determining gemstones with the refractometer.

Background information on the use of refractometers can be found in the refractometry methods article.