Digital Hand-held "PEN" Refractometer PEN-PRO
The PEN-PRO has a measurement range of Brix 0.0 to 85.0% which can be used to
measure almost any sample.
There are 2 ways to measure with the PEN-PRO. Either dip the tip into the sample
and press the START key OR
press the START key and touch the tip into the sample. There is also the new
feature to perform continuous measurements.