The Atago PAL-1 Digital Handheld Refractometer is the best Brix refractometer for most applications. It is a handheld device that measures the refractive index of a liquid sample and displays the Brix value on an LCD screen. It is accurate to 0.1% Brix and has a temperature compensation feature that ensures accurate readings even when the sample temperature is different from the refractometer's temperature. The PAL-1 is easy to use and comes with a calibration solution and a carrying case.