Refractive Index Liquid Series M 1.81 For Gempro Refractometer Prop 65 - Nickel slide the measuring bar fully

slide the measuring bar fully out to the end of the stick and press the Set button to calibrate the digital readout to its minimum value

600 1" x 4" 145

this compact mandrel tapers smoothly from 4

628D / Quatro #NC-GPC

Refractive Index Liquid Series M 1.81 For Gempro Refractometer Prop 65 - Nickel slide the measuring bar fullyRefractive Index Liquid Series M 1. 81 is formulated for use with the GemPro Refractometer to obtain accurate gemstone refractive index readings. This contact liquid creates the necessary optical interface between the stone and prism, ensuring clear shadow edges and reliable measurement results. Features Series M refractive index liquid rated at 1. 81 Designed for use with the GemPro Refractometer Provides proper optical contact between gemstone and