Description
Hand refractometer HRND is a portable optical instrument for determining the refractive index of liquid samples over a measuring range of 1,3330 to 1,5170. Measuring accuracy is specified as ±0,0005, supporting reliable comparative readings in routine laboratory and field work. The scale is expressed in refractive index units and is combined with an integrated thermometer covering 6–36 °C, so temperature can be observed together with the optical reading. Supplied as one piece with a net weight of 0,7 kg (gross weight 1,5 kg), the handheld format allows straightforward sample application and direct scale observation without elaborate sample preparation. This model from manufacturer Krüss originates from Hamburg, Germany, and belongs to the standard refractometer category used for concentration-related optical checks. Typical use includes quality control, teaching laboratories, and research environments where rapid refractive index assessment of aqueous or organic liquids is required. The compact construction fits easily into daily workflows alongside other analytical methods and supports quick, repeatable spot measurements at the bench or on site.
This article is part of Refractometers & polarimeters, in Spectroscopy & photometry.
Key features
- Pack size: 1 pc
- Product type: Refractometer
- Scale unit: Refractive index
- Measuring range: 1,3330–1,5170
- Measuring accuracy: ±0,0005
- Thermometer range: 6–36 °C
- Technical Information Sheet:
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Questions about Handheld refractometer HRND
What is this article?
Handheld refractometer HRND is the article on this page. Luminix Health distributes Krüss for laboratory use. It sits in Refractometers & polarimeters, inside Spectroscopy & photometry, in Lab instruments.
A refractometer reads the refractive index of a liquid, often expressed as Brix for sugar. A polarimeter reads the rotation of polarised light. Both depend on temperature. A handheld refractometer and a thermostated benchtop instrument are different accuracies.
A photometer or spectrophotometer sends light through a sample and reads how much was absorbed. In the range where the Beer–Lambert relation holds, absorbance tracks concentration. A refractometer reads how a liquid bends light, which tracks dissolved solids. A polarimeter reads the rotation of polarised light, the classical measurement for sugars. The lamp, the wavelength and the cuvette path length are the three things that have to be right before the number means anything. The optical quantities trace to NIST and the BIPM.
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The category is Spectroscopy & photometry. The sub-category is Refractometers & polarimeters. The catalogue is Lab instruments.
Shelves beside this one are Photometers & spectrophotometers and Lamps, cuvette holders & accessories.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
