Optical RefractoMeter

The optical refractometer analyzes substance concentration or purity by measuring the changes in the refractive index of light in different media. Its principle is based on Snell's Law, where light bends as it passes through a sample, and the instrument detects the bending angle and converts it into a refractive index value. This device is used to measure the sugar content and salinity of solutions, assess the quality of engine oil, and determine the purity of chemical raw materials. In food processing, it monitors the sugar content of fruit juices; in automotive maintenance, it checks the concentration of antifreeze; and in chemical production, it controls the ratios of solvent mixtures.
Selection
When selecting an optical refractometer, it is essential to consider whether the measurement range and accuracy meet the concentration requirements of the samples. Attention should be paid to the temperature compensation function to adapt to environmental changes, and operational features such as automatic calibration and data storage should be evaluated. Based on the sample form, choose between a handheld or benchtop structure—handheld models are suitable for on-site rapid testing, while benchtop models are ideal for precise laboratory analysis. Confirm the corrosion resistance of the measurement prism material, and compare the service response speed and availability of accessories across different brands.

Terms

Standards

Instruments

Measurement refractive index range 1.3-1 nD, sugar measurement 0-95%, visual aiming Optical inspection dial reading, temperature digital display, stainless steel base and hard Glass prism good durability.

$ 398.00

Using diffuse transmission optical path design, optical density Measurement range 0.00-6 OD, light transmitance accuracy +/- 2%, can simultaneously measure light transmitance, absolute optical density, relative optical density and Dot area ratio.

$ 673.00

Width 2cm, optical path 10mm, dimensions 12.5 × 22.5 × 45mm, specially designed for Spectrophotometer matching Cuvette, to ensure Optical inspection detection accuracy.

$ 101.00

The width is 3cm, the optical path is 10mm, and the dimensions are 12.5 × 32.5 × 45mm. As a special accessory for Spectrophotometer, it ensures the stability of the optical path and the accuracy of measurement.

$ 106.00

Optical inspection principle measurement of liquid concentration, Measurement range 0~ 10% Brix, minimum reading 0.001, only a small amount of samples can quickly obtain accurate results, small size and easy to carry.

$ 122.00

Optical inspection refraction principle, Measurement range 0~ 28% Brix, minimum reading 0.002, small shape only 155mm, light weight to 160g, easy to quickly detect on site.

$ 122.00

Optical inspection refraction principle, Measurement range 0~ 35%, minimum reading 0.005, Dimension 155 * 25 * 40mm, weight only 160g, easy to quickly detect on site

$ 122.00

The width is 5cm, the optical path is 10mm, and the dimensions are 12.5 × 52.5 × 45mm, which is suitable for the use of Spectrophotometer to ensure Optical inspection detection accuracy.

$ 114.00

Measurement range 1.3000~ 1.7000nD, accuracy +/- 0.0002nD, support 0~ 70 ° C thermostatic measurement, visual aiming Optical inspection dial reading, compact and easy to carry.

$ 356.00

Using photoelectric detection and microcomputer servo system, high Sensitivity, minimum reading +/- 0.005 °, Repeatability ≤ 0.007 °, low optical rotation samples with measurable transmittance ≥ 10%, no reading error.

$ 1098.00

Optical inspection system with precision, Measurement range 0~ 40PPT, minimum reading 1, simple operation and only a small amount of liquid can quickly obtain accurate results, portable design for field use.

$ 122.00

Using refractive index measurement technology, 1.5 seconds fast display results, automatic temperature compensation to ensure accuracy, only a small sample, suitable for a variety of environments, Protection Rating IP65.

$ 567.00

The three-in-one optical path design can simultaneously measure the transmittance of blue light at 430nm, purple light at 395nm and visible light, and the test aperture Φ 1mm is suitable for large thickness materials. Real-time dynamic self-Adjustment ensures accurate data.

$ 373.00

Optical inspection principle measurement of liquid concentration, Measurement range 0~ 32% Brix, minimum reading 0.002, compact shape only 155mm, light weight to 160g, easy to quickly detect on site.

$ 122.00

Optical inspection fluorescence method without reference solution, built-in temperature sensor to calibrate data in real time, dual range design covering 0~ 20mg/L and 0~ 200% Saturation, 10 Meters long cable to support deep water or remote installation, polyformaldehyde and stainless steel composite structure to enhance environmental adaptability.

$ 636.00

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