Lightweight Handheld Sphere Colorimeter NR145
The NR145 Colorimeter is a compact, handheld color measurement device designed for simplicity and portability; NR145 microcomputer colorimeter is suitable for color detection and control in various occasions. It is an ideal choice for color management in garment factories, chemical factories, printing factories, automobile factories, hardware processing factories, mold factories, paint factories, etc.
Key Highlights
45°/ 0° optical geometry
Accurate spectra &Lab data , for color matching & delivery;
CIE LAB,LCh, XYZ;
Φ8mm flat aperture;
2.8-inch TFT screen for easy operation
Reliable repeatability (ΔEab ≤0.08) and inter-instrument agreement (ΔEab ≤0.4)
Large storage capacity, Apprx. 20,000 data;
On-site inspections, providing cost-effective color measurement solutions for entry-level applications
3nh R&D team concentrates on customer needs and develops series of high-cost and high-quality products. NR145 is a precision colorimeter with 45°/0° viewing angle after NH310, NH300, NR200, NR110 and NR100 colorimeter. NR145 colorimeter has strong functions which applied a number of differential innovative technologies. It can measure accurately in 45° illumination /0° receiving under the SCE mode.
China NR145 Photoelectric Colorimeter wholesale - Select 2025 high quality Photoelectric NR145 Colorimeter products in best price


Illumination Locating, Cross Locating, Large Stable End Face, Small Concave-Convex End Face |
As a portable colorimeter with 45°/0° optical structurelaunched by 3nh, the NR145 features an 8mm small aperture, dual precision positioning and high stability, and is widely used in color detection scenarios across various industries. Its core applications are as follows:
Suitable for small products such as plastic pellets, casings and buttons, accurately measuring color difference, yellowness index and whiteness index.
Applied in color consistency control of electronic accessories to ensure uniform appearance quality.
Conduct on-site rapid color difference judgment for automotive coatings, industrial coatings and printing inks.
Support color data collection for powder and liquid coatings, and realize color formula traceability with CQCS3 software.
Used for color difference detection of automobile body paint, interior parts and plastic accessories.
Vertical design is suitable for measuring curved and small-area parts, meeting the whole-process quality control of vehicle coating.
Measure the color of cloth, yarn, leather and other textured samples to precisely control dyeing and matching effects.
Adapt to color consistency verification of mass production in clothing and home textiles.
Food: Detect the color of beverages, candies, sauces and other foods to monitor quality stability.
Pharmaceuticals/Cosmetics: Accurately measure color deviation of tablets, capsules and cosmetic powders to ensure compliance.
Building materials: Suitable for color difference detection of hard materials such as glass, ceramic tiles and plates.
Printing: Measure color reproduction of packaging paper products and trademark labels, supporting multi-batch color comparison.
Meet the color measurement experiment needs of universities and research institutions, supporting output of various color space data.
Connect to a computer for data archiving and report generation, facilitating professional color analysis.

3nh | NR145 |
Illuminating/Viewing Geometry | 45°/0° |
Measuring Aperture | Φ8mm |
Measurement End-face | Large stable end face and small concave-convex end face |
Detector | Silicon photoelectric diode |
Locating | Illuminating Locating/Cross Locating |
Color Space | CIEL*a*b*C*h* CIEL*a*b* CIEXYZ |
Color Difference Formula | △E*ab △L*a*b* △E*C*h* |
Light Source | D65 |
Light Source Device | LED blue light excitation |
Errors Between Each Equipment | ≤0.80ΔE*ab |
Storage | 100pcs standards 20000pcs samples |
Repeatability | Standard deviation within ΔE*ab 0.08 Average of 30 measurements of standard white plate |
Weight | 500g |
Dimension | 205×67×80 mm |
Power source | Rechargeable lithium-ion battery 3.7V@3200mAh |
Lamp Life | 5 years, more than 1.6 million measurements |
Charging Time | The first charging time is 8 hours--100% electricity |
PC Software | CQCS3 Software |
Printer (optional) | Miniature thermal printer |
FAQs About NR145 Colorimeter
Because color perception depends on the following factors:
Light source - For example, incandescent lamps emit orange light, while fluorescent lamps emit cool white light. Therefore, placing an object near different light sources will result in different perceived colors.
Observed object - Different types of objects affect color perception differently. Examples include opaque objects, translucent objects, and transparent objects.
Observer's position - Each observer will describe colors differently based on the position of their eyes.
Different backgrounds - An object's color will appear duller against a light-colored background than against a dark-colored background. Different directions of light reflection from the object - Light reflected from different directions creates different color perceptions. This is particularly noticeable with metallic objects.
Different directions of light reflection from the object - Light reflected from different directions creates different color perceptions. This is particularly noticeable with metallic objects.
Many people might answer "with the human eye", but this is actually not comprehensive. The human eye cannot accurately distinguish the colors of similar objects. Furthermore, everyone's perception of color varies. Therefore, people have developed color measurement tools based on the CIE color system.
Currently, there are two main types of commonly used colorimeters, as follows:
Colorimeter - It is an ideal choice for quality control (QC) on production lines, used to detect color differences.
Spectrophotometer - It is suitable for the development of color characteristics and color analysis in laboratories.
The core function of a portable multi-parameter colorimeter is to measure various color parameters, including color difference and chromaticity, and it is mainly used in scenarios requiring precise color management.
3nh portable colorimeters are designed specifically for the above needs, combining portability and high-precision color measurement, making them especially suitable for on-site rapid testing.
Our portable colorimeter products effectively improve color quality control efficiency and help users optimize workflows.
For more product information or to apply for a trial, you can contact our color engineers by email at service@3nh.com.
With over 20 years of experience in color management, 3nh helps optimize your enterprise’s color management workflow, 3nh’s color measurement instruments include colorimeters, benchtop spectrophotometers, color testers, and color matching software. Contact our color experts today!
The repeatability is an important parameter for the accuracy of the colorimeter. Threenh Technology portable colorimeter for color measurements tandard deviation ΔE*ab is within 0.03 (Measurement condition: the average value of 30 measurements on the white board at an interval of 3s after calibration). Each colorimeter can pass the qualified inspection before leaving the factory to ensure it conforms to the standard of China Metrology Institute.
Since part of the light will pass through the light-transmitting materials, the colorimeter is not suitable for color measurement of such kinds of materials; however, when place a pure color material with uniform texture under the light-transmitting material, we can measure the color difference between the standard and the sample.
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