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THIS IS THE MOST ACCURATE TS REFRACTOMETER IN THE WORLD
Refractometers have been proven time and time again to be more accurate than hydrometers or reagent test strips for testing urine
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Gemstone GEM Refractometer - Gemology Gemologist GIA Jorgenson THIS IS THE MOST ACCURATERGM 700 Portable Gemological Refractometer w a 3. 6ml Vial of 1. 800RI Fluid Comes with EASY TO FOLLOW instructions! Written by our staff, not converted from another language! Comes with a Gemstone Refractive Index Chart! Comes in a black zipper case! Comes with 3. 6ml of 1. 800 Refractive Index Fluid MORE THAN ANY OTHER SELLER! Product Specs: Range: 1. 30 1. 81 Refractive Index (RI) Resolution: + 0. 01 RI Accuracy: + 0. 01 RI Dimension: 4. 5" x 1. 5"
US$ 176.95
US$ 116.97
US$ 17.95
US$ 23.00
US$ 26.95
