Diamond Selector II Professional LED Diamond Tester Diamond Indicator Jewelry Gem Crystal Jade Selector Test Pen Tool High Accuracy

OverviewFeatures: Handheld mini diamond selector II for testing real diamond or fake. Specially designed for quick,easy and precise testing without damaging the diamond. Portable electronic diamond testor can be used to test diamond,crystal,jade,gem etc. It will emit audible sounds for you to distinguish real diamond. LCD display & LED indicator to provide accurate reading. Specifications: Power Supply: DC 9V Battery × 1(not included) Material: Alloy,Plastic Color: Black Item Weight: 66g/2.3oz Package Weight: 130g/4.6oz Item Size: 16*4*2.3cm/6.3*1.6*0.9in Note: 1.The thermal conductivity meter is an electronic instrument specially designed and manufactured according to the thermal conductivity of diamonds for identifying the authenticity of diamonds; 2.The tester is a precision electronic instrument,the operating environment should be 5-35 degree Celsius,and the relative humidity of the air should be below 80%; 3.The diamond to be tested must be clean,dry and at room temperature. Package List: 1*Diamond Tester 1*Leather Pouch Case 1*Testing Platform 1*User Manual