The PARK 1 ® combines a non-contact pachymeter, auto-refractometer and keratometer in one unit. In addition to the objective refraction, the keratometer values and the pachymetry can be determined ...
If you would like to try home brewing, you need a refractometer. A refractometer allows you to measure sugar concentration in the wort. You then use this measurement to calculate the beer’s alcohol ...
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