Digital Refractometer

Refractometers are widely used to measure density of dissolved substances in solutions containing mainly sucrose. Refractometers are precise optical instruments designed to measure the concentration or mixture ratio of water soluble compounds. This refractometer automatically compensates for temperature changes so the user just needs to place a few drops on the prism glass to obtain a reading.

The hand held refractometer gives a direct digital readout, and has been professionally designed for testing concentrations of many kinds of solutions such as juices, beverages, honey, salt water, cleaning fluids, battery fluid and antifreeze.

Squeeze the fruit and place only one drop onto the refractometer. The exact density is displayed on pushing the test button.

Fruit refractometers measure the density of sweetness of the fruit that farmers produce. 

The quality is excellent and accurate. It gives a digital readout which is displayed in “Brix” percentage.



PDR-702R / PDR -704R


  • Micro Computer adopted
  • Normal batteries used for easy operating in any place
  • Test by digital mode
  • Waterproof
  • LCD display applied for clear vision
  • Automatic temperature compensation
  • "LO BAT" sign is displayed when battery needs replacement


Model PDR-701R PDR-702R PDR-704R
Measuring Range Brix 0-40% Brix 45-90% Brix 0-60%
Resolution Brix 0.1%
Accuracy Brix ±0.2% 5°C - 40°C
Operating Temperature Automatic temperature Compensation. Std Temp-20°C
Sample Volume 0.1ml-0.3ml
Reaction Time about 3 seconds
Power Source battery 9V x 1EA
Dimension 154(W) x 108(L) x 43(H) m/m
Weight 956g


Carrying Case
Battery Remover