The Rhino-rugged water resistant, dustproof, and shock resistant hand-held refractometer uses Automatic Temperature Compensation to provide accurate readings regardless of ambient temperature. -Automatically corrects all readings back to the Standard Reference Temperature of 68F (20C) providing greater accuracy -Improved optics that are easy to read -No batteries required making it reliable any time -Ideal for use in the office or outdoors -Large and small animal scales in one instrument -IP67 rated, sealed internal optics cannot be contaminated -Test takes only seconds
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