This dual scale refractometer has automatic temperature compensation and measures both Brix (0-32%) and specific gravity (1.000 to 1.130). Comes with sampling pipette and hard shell case.
Much quicker to use on the hot side of brewing as you only need a couple of drops to get a gravity reading.
Please note that once fermentation begins, alcohol will interfere with the accuracy of the readings. There are comprehensive tables online that show compensation rates to allow for more accurate readings.