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
Threenh Technology colorimeters provide a color deviation prompt function according to the Lab value, which can provide a reference for color matching. The handheld colorimeter can only indicate blacker, whiter, redder, greener, yellower or bluer, but it cannot provide accurate color formulas. Only with the help of a spectrophotometer and professional color matching software can fully realized automated color matching.
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.
ΔE*ab ≤ 0.1: For general quality control in textiles, printing, plastics, etc.Recommended models: NH310, NR60CP, NR110, ColorReader series
ΔE*ab ≤ 0.03: For medium-precision applications such as automotive interiors and electronic housings.Recommended models: CR8, CR9, PS2080, PS2070 series
ΔE*ab ≤ 0.02: For high-precision applications such as coatings and dyeing.Recommended models: ST7700, ST70, ST60, PS2080, YS6060, MS30 series
ΔE*ab ≤ 0.01: For laboratory-grade precision measurement.Recommended models: TS8520, TS8560, TS8500, TS4020 series
D/8°and 45°/0°are two kinds of illumination geometry with different optical geometry design. D/8°illumination geometry is more widely used for the color comparison and measurement of high-gloss materials; 45°/0°illumination geometry is mainly used in printing and packaging industries.
For pharmaceutical tablet color accuracy & compliance (USP/EP/ICH/FDA), these 3nh spectrophotometers deliver superior precision:
d/8° integrating sphere, SCI/SCE dual mode
ΔE*ab ≤ 0.01 (repeatability), IIA ≤ 0.1
Small apertures (Φ3mm/Φ8mm) ideal for tablets
Auto positioning, temp/humidity compensation
21 CFR Part 11 software for audit trails
Best for: R&D, formulation, strict QC, coated tablets3nh TS8560
d/8°, dual CMOS sensor
ΔE*ab ≤ 0.018, IIA ≤ 0.24
Multi-aperture, camera view locating
Stable for batch-to-batch tablet consistency
d/8° (SCI/SCE), ΔE*ab ≤ 0.02
Handheld, fast, non-destructive
Best for: line checks, incoming materials, small labs
45/0 geometry, ΔE*ab ≤ 0.04
Rugged, touchscreen, easy QC
Suitable for uniform, uncoated tablets
Top lab accuracy: TS8560
Best value benchtop: TS8503
Portable production: ST70
Economical QC: NS800
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