DRT-GID-PLBK LED Compact Polariscope brand_MM Outdoor which requires no batteries or

which requires no batteries or phantom power

Tuning Frequency: 40 HZ

a $55 value

Mini ANL fuse holder with 60 amp fuse

DRT-GID-PLBK LED Compact Polariscope brand_MM Outdoor which requires no batteries orDescription Polariscopes are used to check if cut or rough gemstones or minerals are singly or doubly refractive. The light turns on and off by twisting the bottom. Place the stone on the table of the polariscope with the light on. Rotate the stone 90 at a time to view the changes in the stone. Using ample light view your rough stone through the polariscope to gather desired information. Metal Body 3 LED Requires 2CR2032 Batteries (Included) Twist