LS372 45/0 Colorimeter with Touch Screen
4mm aperture, designed for printing industry
D50 standard lighting conditions, in line with ISO standards
3.5-inch smart touch screen
Built-in multiple standard electronic color cards
High precision, national first-class machine
LS372 is a smart touchscreen colorimeter tailored for the printing industry. It features a 3.5-inch IPS color capacitive display for an excellent user experience. With a 4mm measuring aperture and D50 standard light source, it meets printing color detection standards and accurately reflects printed colors under standard conditions. The device includes multiple built-in color cards, enabling fast matching of the three closest color codes. It supports color difference comparison, various standard color input methods, adjustable color difference thresholds, flexible formula selection, and rapid QC detection.
LS372 mobile app connection test
LS372 small area color test
LS372 color deviation test for brochures
LS372 packaging bag color test
LS372 poster color test
LS372 packaging box color deviation test
Parameters
| Parameter | Value |
|---|---|
| Illumination geometry | 45/0 (45°annular illumination, 0° viewing angle) |
| Illumination light source | Full spectrum LED light source |
| Spectral Range | 400-700nm |
| Spectral Interval | 10nm |
| Measuring aperture | 4mm |
| Measurement conditions | Light source D50, field of view 10° |
| Measuring time | About 1s |
| Color space | CIE Lab、LCh、Luv、Yxy、CMYK、RGB、YI-98、WI-98、WI-Gauz WI-Hunter、WI-R457、HSL、HSV、ITA、Spectra |
| Color difference formula | ΔE*ab, ΔE*uv, ΔE*94, ΔE*cmc(2:1),ΔE*cmc(1:1), ΔE*00, ΔE*cmc(1.4:1) |
| Repeatability | Standard deviation ΔE*ab ≤ 0.03 (Measurement condition: the average value of 30 measurements on the white tile at aninterval of 3s after calibration) |
| Dimension | 86mm×62.5mm×158mm |
| Weight | About 225g |
| Power supply | Rechargeable lithium battery3.7V@4000mAh can measure 10,000 timescontinuously under full charge |
| Display | 480×320 dot matrix IPS color screen |
| Language | Simplified Chinese, English |
| Charging port | USB (Type-C) |
| Operating temperature range | 0~45℃, 0~85%RH (no condensation) |
| Storage temperature range | -25~55℃, 0~85%RH (no condensation) |
| Supply Voltage | DC5V |
| Operating Current | 120mA |
| Operating Power Consumption | 600mW |
Features
4mm Measurement Aperture
Equipped with a 4mm measurement aperture, the instrument is ideal for precise color evaluation of small to medium-sized graphic areas such as printed materials, labels, and packaging samples. It minimizes edge interference and significantly enhances measurement accuracy.
D50 Standard Light Source for Printing
Uses a D50 light source meeting CIE and ISO standards to accurately reproduce printed colors under standard viewing conditions, ensuring the measurement results are more industry-orientes.
3.5-Inch Touch Screen for Easy Operation
Featuring a 3.5-inch high-definition touch screen with an intuitive interface, the device is user-friendly and quick to master—making professional color measurement simple and efficient.
Two-Step Color Comparison with Lab Bias Indicator
Complete color difference measurement in just two clicks, with clear Lab channel bias prompts to guide color mixing.
Built-In Multiple Industry-Standard Electronic Color Cards
Includes multiple standard electronic color cards and quickly matches the top 3 closest colors with over 90% accuracy, making it essential for printing proofing and quality control.
Large Storage Capacity with Cloud Sync
Offers ample storage for personalized color databases and industry-specific color cards. Data can be synced to the cloud, enabling seamless sharing across multiple devices for efficient color management.
Color Difference Comparison Without Physical Samples
Supports using stored historical colors, built-in color card libraries, or direct Lab and other color space inputs for comparison—eliminating concerns about sample aging and fading for greater flexibility and efficiency.
Powerful Mobile App and PC Software
Feature-rich app and PC software enable data sharing, history management, report export, and more, supporting versatile color difference management across multiple scenarios.
QC Detection Function Ensures Product Consistency
Set color difference thresholds to display pass/fail results based on △E values between standard and sample colors, helping to maintain consistent product color quality.
Repeatability △E*ab≤0.03
The instrument has a repeatability of up to △E*ab ≤ 0.03, with excellent stability and can pass the inspection of the authoritative metrology institute.
Multiple Color Spaces and Difference Formulas
Offers various color spaces like Lab, RGB, CMYK, and multiple ΔE formulas including ΔE*ab and ΔE*uv.
Provide Spectral Reflectance Curve
Provide professional spectral reflectance curves to support for in-depth color analysis, metamerism research, and special effect ink evaluation.
High-Precision Positioning Plate for Accurate Measurement
Equipped with a standard positioning plate to ensure precise alignment, effectively minimizing human error for more reliable data.
Ergonomic Design, Comfortable Grip
Designed according to hand holding habits, the body is light and easy to hold for a long time without fatigue.
Built-In Calibration White Board
Integrated into the instrument’s bottom cover, the calibration white board eliminates the need to carry an extra one, preventing loss and ensuring consistent calibration with simple single-color operation.
Full-Spectrum LED Light Source
The full-spectrum LED light source has a long life and stable performance, ensuring sufficient spectral distribution in the visible light range and avoiding the lack of spectrum in specific bands of white light LEDs.
45°/0 optical path structure
Adopt the internationally accepted 45/0 ((45°annular illumination, 0° viewing angle), SCI illumination observation conditions for more accurate measurement.
Supports Chinese, English, and Turkish language switching
Built-in compensation optical path ensures stable values and allows long calibration intervals
Built-in lithium battery enables up to 10,000 continuous tests per charge, with adjustable auto power-off time
Qualifications and Standards
Standards for the product:
JJG 595-2002 Colorimeters and Color Difference Meters
GB/T 3978-2008 Standard illuminants and geometric conditions
GBT 7921-2008 Uniform color space and color difference formula
GB/T 11186.1-1989 Methods for measuring the colour of paint films--Part 1: Principles
GB/T 11186.2-1989 Methods for measuring the colour of paint films--Part 2: Colour measurement
GB/T 11186.3-1989 Methods for measuring the colour of paint films--Part 3: Calculation of colour differences
GB/T 19437-2004 Graphic technology--Spectral measurement and colorimetric computation for graphic arts images
GB/T 39822-2021 Plastics—Determination of yellowness index and change in yellowness index
GB/T 17749-2008 Methods of whiteness specification
ASTM E313-98 Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
Installation and Operation
1. Mobile APP installation
The mobile APP support Android operating system version 7.0 or higher and iPhone supports iOS 7.0 or higher version.
It can be installed in the following ways:
Scan the QR code on the portable colorimeter with a mobile browser or WeChat, follow the prompts to download and install.
Click on the link https://www.linshangtech.cn/a/170/ to install the APP.
Search for "LSColor" (not case sensitive) in the APP Store/Google Play to install the application.
2. PC software installation
Connect to the computer via USB, you can use the PC software of the colorimeter. (PC software only supports Windows operating system)
It can be installed in the following ways:
Download "Colorimeter" to the local and run it directly after decompression.
Video
LS372 Operation video
Packing
| No. | Description | Quantity | Unit |
|---|---|---|---|
| 1 | Colorimeter | 1 | Set |
| 2 | USB cable | 1 | pcs |
| 3 | Cleaning cloth | 1 | pcs |
| 4 | Locating plate | 1 | pcs |
| 5 | User manual | 1 | pcs |
| 6 | Calibration Report | 1 | pcs |