<p>&nbsp;</p> <p>This refractometer is for measuring the sugar content of beer &amp; wine.</p> <p>This refractometer features ATC (Automatic Temperature Compensation) for accurate readings (10 - 30 degree Celsius).</p> <p>A refractometer is easier &amp; more accurate than a hydrometer for measuring sugars.</p> <p>Simply use the dropper to take a sample &amp; place it on the prism, then hold the refractometer up to the light &amp; look through the eyepiece.<br><br>Due to the dual scale there is no need convert to specific gravity as the scale measures both Brix and SG.</p> <p>Specifications:</p> Refractometer 0-32% Brix (sugar) model. Accuracy +/- 0.5% Resolution 0.20% Model: RHB-32SGATC Measuring Range: Brix0-32% Resolution: Brix0.1% Accuracy: Brix0.1% ATC: Yes ATC Temp: 0-30°C Dimensions: 24.5mm*170mm Weight: 0.13kg <p>Manual calibration with mini-screw driver provided.</p> <p>GENERAL REFRACTOMETER INFO:</p> <p>A sugar Refractometer for measuring the specific gravity or Brix of unfermented wine &amp; beer.</p> <p>Works like a hydrometer except you only need a few drops &amp; there is no need to cool a trial jar of liquid before taking a reading.</p> <p>Using a refractometer lets you check the progress of your brew so you can make adjustments along the way.</p> <p>Apply 2-3 drops to the prism face, close cover &amp; wait 30s. Look through the eye-piece - the line on the screen will show the Brix %.</p>