Features:
Quick Identification: The refractometer can quickly and accurately identify a variety of single and double gemstones, helping to identify diamonds, moissanite, etc.
Strong Practicality: The primary use of the portable gemstones refractometer is to measure the angle at which light is bent or refracted through the stone.
Specially Designed: This refractometer is specially designed to measure the refractive index of gemstones and materials.
High Accuracy: Professional gemstones refractometer has high accuracy, small size, easy portability and easy operation.
Clear Display: The jewelry gemstones refractometer has a clearly visible display for easy reading.
Specification:
Item Type: Portable Gemstones Refractometer
Material: Glass, ABS
Product size:Approx. 128 x 60 x 32mm / 5.0 x 2.4 x 1.3in
Measuring Range: 1.30 to 1.81
Minimum Division Value: 0.01
Liquid: Refractive Oil (Shipped with Liquid)
Flashlight Battery: 1 x 1.5V AA Battery (Shipped Without Battery)
Weight: Approx. 590g / 20.8oz
How to Use:
1: Wipe the gemstones to be tested and the refractometer table, and apply 1 to 2 drops of refraction oil evenly on the surfaces of the prism.
2: Put the gemstones to be tested on the platform, let the gemstones completely cover the surfaces of the prism, and ensure that the refracting oil is in full contact with the gemstones.
3: Press the tail of the flashlight to turn on the light source.
Package List:
1 x Portable Gemstones Refractometer
1 x Flashlight
1 x Refractive Oil
1 x Box
1 x User Manual