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. Due to the very high quality optics, it is also suitable for complex examinations, such as the “distant vision” method or the “spot” method.

Technical details:

■ Premium upscale gemstone refractometer with polarization filter
■ Measuring range: 1.33 – 1.83 nD
■ Including a high quality LED light source with a wavelength of 589 nm
■ High-end prisms made of optical glass with a resolution of 0.01 nD
■ Housing: aluminum cast
■ Dimensions (W × H × D): 30 mm x 80 mm x 125 mm
■ Weight: 358 g

You will find practical examples of examinations 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 method article.