This is a “PAL” pocketable Sugar/Brix Refractometer measurement for low, middle concentration model.
The measuring range is wide from Brix 0 to 53%, so it could measure lots of things; fruits, beverage, soup, source, ketchup, tomato source, low sugar jam and marmalade.
Product name: PAL-1 pocketable Sugar/Brix Refractometer & densimeter
Size: Width 55mm, Depth 31mm, Height 109mm
Power: two triple A batteries
Measuring range: Brix0.0 ~ 53.0% (automatic temperature compensate)
Accuracy of measurin: Brix±0.2%
Temperature compensate: 10~75°C
Weight: 100g (base body)