Fable LED Mini Gemological polariscope FPP-30 with Build-in 3V button type battery

Fable LED Mini Gemological polariscope FPP-30 with Build-in 3V button type battery

The polariscope can quickly determine whether gems are singly or doubly refractive .sometimes ,use the interference figure sphere to view the interference figure spere to view the interference pattern .

Product Description:

1. Black aluminium alloy shell.                                

2. Diameter of polaroid: 30mm.                                      

3. Rotation type sample room

4. Long life white LED cold light source.                                     

5. Build-in 3V button type battery

6. Leather sheath packaging