YL4668 Spectrophotometer is a high-precision device for accurate color measurement and analysis, Professional-Grade Solution for Reflective Color Measurement & Matching. It enables precise spectral data collection across visible wavelengths, supporting color formulation, quality control, and standard creation in industries, Non-contact measure for liquids, pastes, powders and gels.
Key Highlights
D/8 Optical Geometry
Non-contact measure for liquids, pastes, powders and gels;
256-pixel dual-array CMOS image sensor;
Measurement speed of just 0.2 seconds, suited for on-line testing use
Good repeatability ΔEab ≤0.03; Inter-instrument Error ΔE*ab ≤0.2;
Ideal for cosmetics, fruits and vegetables, food hygiene, plastic electronics, paint, ink, small and odd-shaped samples color measuring
The YL4668 spectrophotometer is a color measuring instrument that adopts D/8 (diffuse illumination, 8°direction reception, SCI includes specular reflection light) standard color measurement instrument, non-contact test between test probe and tested sample, to achieve liquid and sauce , powder and other non-contact precision color measurement. The simple probe design allows this product to be placed anywhere on the automated production line for precise color measurement and color quality control. It is widely used in cosmetics, fruits and vegetables, food hygiene, plastic electronics, paint and ink, printing, ceramics and other industries. It can be used for fluorescent sample measurement. Its unique innovative design can not only provide non-contact measurement solutions directly from the production line, but also ensure stable and high-precision measurement results.
Features of non-contact spectrophotometer
Higher optical resolution ensures the measurement speed, accuracy, stability and consistency of the instrument, mastering the core technology, and achieving complete compatibility on the same platform with international standards.
The full-spectrum LED light source ensures sufficient spectrum distribution in the visible light range, avoids the lack of LED spectra in specific bands, and ensures the accuracy of the instrument's measurement results and low-cost maintenance.


Using concave grating spectroscopy technology, it has higher resolution and makes color measurement more accurate.

Using industrial-grade real-time processing MCU, supporting Bluetooth 5.0 transmission is more stable and reliable.
Provide CIE LAB, XYZ, Yxy, LCh, CIE LUV, Musell, s-RGB, HunterLab, βxy, DIN Lab99 color space, and D65, A, C, D50, D55, D75, F1, F2 (CWF), F3, F4, F5, F6, F7 (DLF), F8, F9, F10 (TPL5), F11 (TL84), F12 (TL83/U30) multiple observation light sources can meet the special measurement requirements under different measurement conditions.

YL4668 achieves the high precision and high measurement speed. So it is suited for on-line testing use. A complete measurement cycle only needs 200 milliseconds, and more than 400,000 samples can be measured per day. Help customers establish and improve an enterprise's color management system and quality control system.

3NH offers a broad range of spectrophotometer models tailored to diverse applications in both industry and research. Additional instruments color measurements for chemicals, pharmaceutical products, cosmetics, petroleum products, aromas, biofuels, and more.
YL4668 Non-Contact Inline Spectrophotometer Technical Parameters
| Model | YL4668 |
| Optical Geometry | D/8 (diffuse illumination, 8° direction reception, SCI includes specular reflection light); Comply with standard CIE No.15, GB/T 3978, GB 2893, GB/T 18833, ISO7724-1, ASTM E1164, DIN5033 Teil7, GB 2893, GB/T 18833 |
| Features | Non-contact test between test probe and tested sample, to achieve the non-contact precise color measurement of liquid, sauce, powder, etc. It is mainly used for accurate color measurement and quality control of automated production lines; the measurement time can be adjusted from 0.2 to 1.5 seconds, and the software functions can be customized (additional customization function needs to be evaluated). |
| Light Source | Full spectrum LED light source, UV light source |
| Spectrophotometric Mode | Concave Grating |
| Sensor | 256-pixel dual-array CMOS image sensor |
| Wavelength Range | 400~700nm, 10nm output |
| Measured Reflectance Range | 0-200% |
| Measuring Aperture | Φ20mm (Φ10mm can be customized) |
| Non-contact distance | 3.0mm (±0.2mm) |
| Sample height | Unlimited thickness, only test probes are used |
| Distance adjustment method | Fixed height according to actual sample |
| Measurement mode | Software customization function (additional customization function needs to be evaluated) |
| Locating | Camera locating |
| Color Space | CIE LAB,XYZ,Yxy,LCh,CIE LUV,Musell,s-RGB,HunterLab,βxy,DIN Lab99 |
| Color Difference Formula | ΔE*ab,ΔE*94,ΔE*cmc(2:1),ΔE*cmc(1:1),ΔE*00,ΔE(Hunter),DINΔE99 |
| Other Colorimetric Index | WI(ASTM E313,CIE/ISO,AATCC,Hunter), YI(ASTM D1925,ASTM 313), Metamerism index MI, Staining Fastness, Color Fastness, Strength, Opacity |
| Observer Angle | 2°/10° |
| Illuminant | D65,A,C,D50,D55,D75, F1,F2(CWF),F3,F4,F5,F6, F7(DLF),F8,F9,F10(TPL5), F11(TL84),F12(TL83/U30) |
| Displayed Data | Spectrogram/Values, Samples Chromaticity Values, Color Difference Values/Graph, Color simulation, pass/fail result, display tolerance can be set |
| Measuring Time | As fast as 0.2 seconds |
| Data Storage | Sample mode + quality control mode 18,000 |
| Continuous statistical mode 30,000, totaling no more than 48,000 | |
| Repeatability | In the optimal measurement mode (when a single measurement time is 1.5 seconds): Spectral reflectance: within 0.1% of standard deviation: Chromaticity value: ΔE*ab within 0.03(After the instrument is warmed up and calibrated, measure the average value of the whiteboard 30 times at an interval of 5s) |
| Inter-instrument Error | Within ΔE*ab 0.2(Measured average value of 12 tiles of BCRA series Ⅱ) |
| Measurement method | Single measurement, average measurement (2~99 times) |
| Dimension | 200*200*160mm (test probe) |
| Weight | About 3Kg (only test probe) |
| Power | AC 24V, 3A Power adapter power supply |
| Illuminant Life Span | 5 years, more than 3 million times measurements |
| Display | 7-inch TFT color LCD, Capacitive Touch Screen |
| Data Port | USB, Bluetooth®5.0 |
| Language | Simplified Chinese, Traditional Chinese, English |
| Operating Environment | 0~40℃, 0~85%RH (no condensation), altitude: less than 2000m |
| Storage Environment | -20~50℃, 0~85%RH (no condensation) |
| Standard Accessory | Power adapter, manual, data cable, standard calibration board, black calibration box |
| Notes | This model is specially suitable for streamlined production lines, in-depth function customization will incur additional customization costs |
FAQs About YL4668 Spectrophotometer
Yes, we warmly welcome and sincerely invite you or your team to visit our factory, we will help to arrange hotel and pick up you from airport.
The main instruments used to detect color are spectrophotometers and colorimeters (including photoelectric integrating colorimeters).
Spectrophotometer: High-precision option. It analyzes the full visible light spectrum to measure color accurately. Suitable for complex scenarios like textured surfaces, special effect colors, or batch consistency checks in industries such as paint and coatings.
Colorimeter (Photoelectric Integrating Colorimeter): Cost-effective and portable. It uses RGB filters to measure tristimulus values directly. Ideal for quick color difference detection in simple applications. Key Selection Tip Choose based on accuracy needs: use a spectrophotometer for high-precision color measurement, and a colorimeter for fast, basic color difference checks.
The machine used to measure color is primarily called a colorimeter or spectrophotometer.
Spectrophotometer: The most common and precise type. It analyzes light reflected/transmitted by an object across the visible spectrum to quantify color accurately. A spectrophotometer can measure colors on smooth or matte surfaces, as well as textured, glossy, mirror-like surfaces, and special effect colors. It measures the reflected light of a sample at a fixed angle (e.g., 45˚) or captures light reflected at all angles to calculate color measurements that closely match what the human eye perceives. Additionally, similar to how humans flip a sample to view colors from different angles, a spectrophotometer is suitable for measuring a variety of materials and surface characteristics. Widely used in industries like paint, textiles, plastics, Chemicals, Pharmaceuticals, and printing.
Colorimeter: Also called photoelectric integrating colorimeter, a simpler, more cost-effective option. It measures color based on three primary colors (RGB) and is suitable for basic color matching needs. A photoelectric integrating colorimeter is a color measurement device based on the photoelectric integration principle. It directly measures the tristimulus values XYZ of an object's color using three color filters (red, green, blue) and silicon photocells as three sensors. The color measurement principle of this instrument imitates the human eye's mechanism of perceiving the three primary colors (red, green, blue). It corrects the relative spectral sensitivity of the detector through color filters to match the CIE-recommended spectral tristimulus value functions x(λ), y(λ), and z(λ).
Spectrocolorimeter: Combines the functions of spectrophotometers and colorimeters, offering both spectral data and color space values for comprehensive analysis.
Yes, we can offer Spectrodensitometer quality certification issued by our lab free of charge, or issued by third-party international inspection Organizations with extra charge, please contact us for confirmation.
Always a pre-production sample before mass production; Always final Inspection before shipment;
Discuss your project with one of our product specialists:
0086 755 26508999We respond to quote requests within 1 business day.
service@3nh.comSubmit a demo request for the product you're interested in.
Get a Demo