No refractometer oil needed, Read instant results on LCD
Wide measuring range: 1.400 ~ 3.000 RI, High accuracy: ± 0.007 RI
separate diamonds, moissanites and other colored gemstones via its Refractive Index
Item weight: approx. 339g. Item size: approx. 105 x 60 x 35 mm
Power source: 1 x 9V battery. Working temperature: 10 ~ 28°C (50 ~ 82.4°F). Gemstone must have a at lease 0.11 inch (3mm) well polished flat surface for accurate result

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 4.1 inch
Height : 2.4 inch
Length : 5.9 inch

Item Weight: 15.84 ounce (View shipping rates and policies)
Shipping Weight: 1 pounds (View shipping rates and policies)

ASIN : B00HYJSNDG