Portable With Monochromatic Light Filter gemological refractometer FGR-003A

Model number: FGR-003A

Matters need attention

1: Wipe the prism before the test to make it clean;
2: Protect the prism of the refractometer during the test to avoid scratches with hard gems or tweezers that will affect the test results;
3. After the test, wipe the contact liquid on the prism in time;
4. The conventional refractive liquid test range is 1.35-1.79, gems's IOR larger or lower than this range cannot be measured;
5. For accurate and comprehensive testing of gemstones, please combine with other instruments to verify each other to make the results more accurate;
6. Unpolished or poorly polished gemstones cannot read the refractive index normally;

Shenzhen Fable Jewellery Technology Co.,Ltd was established in 2006, who located in Shenzhen which is called Chinese Jewelry Capital. Shenzhen, with its unique geographical location and development advantages, is the largest international well-know jewelry manufacturing base and trade set scattered places. It is also the international information center of jewelry industry as well as training center of jewelry appraisal.

Fable focus on research and development, producing and marketing jewelry detectiona and identification instruments. It specialized in Gem Microscope, Gem Refractometer, Table Spectroscope, Hand-held Spectroscope (Grating Spectroscope and Prism Spectroscope), Calcite Dichroscope, Table Polariscope, Portable Polariscope, LW/SW Ultraviolet Lamp, Optic Fiber Illumination ( Cold Light Source), Diamond Proportion Tester, Hardness Pencil, Gem Indentifying Travel Lab and so on. Some products are patented in China.

Fable insists on the principle of "Excellent Quality, Reasonable price, Honesty, Co-operation" and take firm steps to achieve continuous development at home and abroad by offering advanced products with competitive prices and better service.

Surely, your support and advice is Fable's direction and motivation. Fable will as always provide high quality product and excellent service.

If you are satisfied with Fable, please share with more friends of you.

Thank you!