Saber LED Refractometer - Water Resistant - Three Scale (incl Case, Charging Cab

Getting fast, accurate, and reliable readings during all-grain brewing is essential to getting the best possible efficiencies. Refractometers help you achieve this and can speed up your brew day significantly. Now in a water-resistant design that is rechargeable!
This high-quality refractometer is extremely accurate and easy to use and calibrate.
Calibration is simply done with a few drops of distilled water and the use of a flat head screwdriver.
This model also features ATC (automatic temperature compensation).
Comes with:
Carry case
Red Magnetic Charging USB Charging Cable (AU plug not included)

Calibrate Steps:
1. Add 10 drops of clean filtered water (preferably deionised water) to the refracted sample end of your Refractometer. 
2. Either in direct sunlight or using the LED, observe the blue shaded area. Does it read 1.000? If it is higher or lower, you will need to use a flat headed screwdriver and adjust the underside of the Saber Refractometer so that it reads 1.000.