Practical Jewelry Diamond Selector II Moissanite Tester Portable Gemstone Gem Testing Tool Set LED Diamond Indicator Test Pen

Features：
Diamonds Selector II will indicate genuine- diamonds or fake. designed- for quick, precise, and safe diamonds testing.
Uses large / small switches for testing diamonds,Emits audible- sounds to easily differentiate the readings.
Our diamonds Tester Pen simple to operate to get results-, professionals are not required.
The operating environment: 5-35 ℃, and the air relative humidity: 80.
Batteries: 1 x 9v Battery not included.
Specifications:
Material: palstics
Size: approx 135x40x23mm/5.3×1.6×1-inch
Batteries: 1 x 9v Battery not included
Note:
Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item.
Package Includes:
1x Thermal Conductivity Meter