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Accuracy: 0
where the stone is in optical contact with the glass by use of a refractive index liquid
Measurement in 3 seconds
25% instead of 6
BOSS BGR-200 Professional Grade 0-100% Glycerin Antifreeze Refractometer sugar meter Accuracy: 0BOSS BGR 200 Portable 0 100% w w Glycerin Refractometer THIS IS THE BEEFY, PROFESSIONAL GRADE VERSION OF THE GR 100! New Fire sprinkler laws (NFPA 13) got you worried? Worry no more! You've found the unit to test the concentrations of Glycerin in Water and determine your pipes FREEZE POINT! This is the Refractometer the Professionals use! NOBODY MAKES A TOUGHER HANDHELD REFRACTOMETER THAN BOSS REFRACTOMETERS! The User's Guide that comes with the unit
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