This digital handheld refractometer DHR by SCHMIDT + HAENSCH allows for rapid, on-site measurements of liquid substances with high or low viscosity. The full view of the LCD screen of the DHR displays reliable results with high precision (five digits) in 2 seconds. SCHMIDT + HAENSCH’s DHR can be used in agriculture, e.g. to determine the point of harvest, or in the automotive industry, e.g. to analyze antifreeze.