GemLED Refractometer With M7 Docking Station Desktop Jewellery & Watch Multi-Functional Repair Tool with LED Lights The tin's edge allows for

The tin's edge allows for storage of tools such as pliers

Stone Size (mm): 18

Bergeon 5901-P27

When set upper and lower limit value

GemLED Refractometer With M7 Docking Station Desktop Jewellery & Watch Multi-Functional Repair Tool with LED Lights The tin's edge allows forInnovative gemstone refractometer with built in LEDs for mains and battery operation. Refractometer contact liquid ND 1. 79 and polarization filter included. Refractive index: nD 1. 30 1. 81, scale graduation 0. 01 for an easy, direct and accurate reading Monochromatic illumination with powerful LEDs 589nm of the sodium D wavelength, arranged directly on the refraction element within the refractometer housing, for a sharp and high contrast image of