DBR 55 

Portable and benchtop digital refractometer. Working range 0.0..55.0% Brix (± 0.2%). Automatic temperature compensation 10.0..60.0 °C. Self-calibrating with water. Backlit display. Sample volume 0.5 ml. Complete with rubber shell and hard case. Power supply 2 x 1.5 V (Alkaline AAA). Dimensions 58 x 36 x 122 mm. Weight 150 g.