Features:
*
*Constructed with materials for long-lasting performance.
*Easily distinguish a wide range of gemstones using precise refractive index measurements; each gemstone type maintains its own refractive index value.
*Capable of measuring birefringence, supporting identification of both uniaxial and biaxial crystals.
*Compact and lightweight body for unmatched portability. Designed for minimal power usage, making it simple to carry and operate wherever required.
*Widely used and valued within the jewelry community for its reliable results.
*Each unit is rigorously tested according to strict safety and operational standards, ensuring reliable use over time.
*Delivers dependable measurement output every use.

Specification:
*Name: Gem Refractometer
*Colour: Black
*Measurement range: 1.30~1.81RI.
*Minimum graduation value: 0.01RI.
*Size: 30*70*130mm.
*Application scope: pendants, bracelets, gemstones
*Model：A(1X Gem Refractometer+flashlight+refractive oil)，B（1Xflashlight）

Package Included:
1X Gem Refractometer.
1X flashlight
1X refractive oil
or
1*flashlight