... juice, canned foods,etc.. 2. two scales. RHBO-80 Brix refractometer combines two separate Brix ranges in one instrument and covers ... accuracy and readability down to 1%. A versitle, two scale refractometer designed to measure solutions falling within a range of 0 ... for dropping test fluids onto the prism (never dip the refractometer into the test fluid!), a mini screwdriver for scale calibration ...