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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
* Weight: 138 grams/5
Step 2: Place a drop of the calibration fluid (distilled or R/O water) onto the glass prism of the unit
OTHER UNITS THAT CLAIM TO BE "ALL METAL" HAVE PLASTIC CLAMPS THAT HOLD THE DAYLIGHT PLATE
Item Description: NI Supply ZGRS-10ATC Portable Salinity Refractometer
Veterinary clinics and hospitals use this unit for rapid testing of animal urine
Gem Refractometer - Gemology Gemologist RGM-100 w/ 789nm Flashlight +RI 1.81 Refrigeration Oil * Weight: 138 grams/5Item Description: RGM 100 Portable Gemological Refractometer with a flashlight COMES WITH 10 Gram Vial (1. 8ml) of 1. 81 Index Fluid REFRBUSHED! Comes with instructions! Written by our staff, not converted from another language! Comes with a Gemstone Refractive Index Chart! Comes in a black zipper case! This unit comes with AMERICAN MADE 1. 81nD Refractive Index Fluid! Very few units come with the "good stuff", but this one does! Product Specs:
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