RHBO-80 Brix Refractometer Combines Two Separate Brix Ranges in 1 Instrument and Covers a Total Measuring Range of 0-80%. Range 1 Covers 0-50% and Range 2 Covers 50-80%, Allowing This Instrument to be Used on Many Products and Processes. Measuring Range: Scale 1 : 0-50 °Brix Scale Two : 50-80 °Brix