Features：
It is fully equipped with ATC (Automatic Temperature Compensation), which equipped to automatically adjust to the correct temperature during the use
For field use, without having to re-calibrate after changes in ambient working temperature
Uses ambient light only which means battery or power source is not required
Made with the highest and finest quality of aluminum & rubber that makes it lightweight
Cushioned with soft & comfortable non-slip rubberized grip handle
Adjustable manual focusing
Equipped with tri-scale measurement (water, baume & brix) that provides direct reading
Specifications：
Measuring range：brix: 58-90%; baume: 38-43; be water: 10-33%
Resolution：brix: 0.5%; baume: 0.5; be water: 1% sharp dividing line (blue-white)
ATC(automatic temperature compensation) compensation range：10°C~30°C (50°F~86°F)
Reference temperature：20°C
Size：160*59*49mm
Weight：250g
​How to use?
Step 1：Place a few drops of the liquid on the main prism.
Step 2：Cover the prism,look through the eyepiece against the light.
Step 3：Adjust the eyepiece to the clear state.
Step 4：You can read the result value on the scale.
Packing List：
1 x Refractometer
1 x Pipettes
1 x Screwdriver
1 x Cleaning Cloth
1 x English Operating Manual
1 x Plastic Box