1.30-1.81 Gem Refractometer with LED Flashlight Jewelry Gemstone Refractometer High Precision Zircon Gemstone Detector
1.30-1.81 Gem Refractometer with LED Flashlight Jewelry Gemstone Refractometer High Precision Zircon Gemstone Detector
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SPECIFICATIONS
Brand Name: JUANJUAN
Brix Min. Div.: Normal
Brix Range: Normal
Certification: CE
Choice: yes
Feature: Gem refractometer
High-concerned chemical: None
Measurement Accuracy: ±0.002
Measurement Range: 1.30-1.81
Min. Div.: Normal
Model Number: Gem refractometer
Origin: Mainland China
Size: 12x7x4cm
Type 1: Ruby/sapphire
Type 2: Emerald/agate
Type 3: zircon
Use: Concentration
Weight: 0.56kg
semi_Choice: yes
1.30-1.81 Gem Refractometer with LED Flashlight Jewelry Gemstone Refractometer High Precision Zircon Gemstone Detector
Note: The refractive index of diamond is 2.417, so it cannot be measured.
Gem refractometer is the most important tool for measuring gems. It can measure the refractive index of gems nondestructive, quickly and accurately, and determine other optical characteristics of gems.
This product uses high refractive index lead glass as the test prism;
Measuring range: 1.30-1.81,
Accuracy: ± 0.002,
Power supply device: LED light with AA battery;
Equipped with 3ml refractive oil (refractive index 1.78)
This offer is for limited time only! Buy before price increase.
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