Feature: 1. DUAL PATH DESIGN: Monitor the energy fluctuations of the light source while measuring the sample signal, with less interference and high stability. Increase the measuring repeatability index to dE x ab ≤0.03. 2. NANO OPTICAL DEVICE: Using nano integrated optical devices as spectroscopic devices, only 5 micrometer thick optical devices are needed to achieve nanoscale spectroscopic capabilities. 3. LIGHT SOURCE TYPES: With nearly 40 evaluation light sources to choose from, including A, B, C, D50, D55, D65, and almost all color measurement indicators and light source types in the industry. 4. IMAGE MONITORING: During measuring, images of the tested area can be obtained through the camera, clearly locating the sample tested area, and avoiding errors caused by regional errors. 5. OTHER FUNCTIONS: More than 30 measuring indicators, full band balanced LED light source, support intelligent automatic calibration, this color difference tester is convenient and practical. Specification: Item Type: Portable Colorimeter Product Model: DS 200 Power Supply: 5V 2A Measurement Structure: D/8, SCI Measurement Repeatability: △ E x ab ≤0.06 Display Accuracy: 0.01 Measurement Caliber: 1 type, dia 6mm Measurement Indicator: Spectral reflectance, CIE-LCh, HunterLab, CIE-LLv, XYZ, Yxy, RGB, color difference (Δ E x ab, Δ E x cmc, Δ E x 94, Δ E x 00), Whiteness (ASTM E313-00, ASTM E313-73, CIE/ISO, AATCC,, Taube Berger Stensby), Yellowness (ASTM D1925, ASTM E313-00, ASTM E313-73), Blackness (My, dM), Color fastness, Color fastness, Tint (ASTM E313-00), Color density (A, T, E, M), Isochromatic index Milm, Munsell, Covering power, Power (Dye strength, Coloring power) Light Source Condition: A, B, C, D50, D55, D65, D75, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, CWfU30, U35, DLF, NBf, TL83, TL84, ID50, ID65, LED-B1, LED-B2, LED-B3, LED-B4, LED-B5, LED-BH1, LED-RGB1, LED-V1, LED-V2 Lighting Source: Full band balanced LED light source Measurement Observation Method: Visual Inspection Calibration: Intelligent Automatic Calibration Software Support: For Windows Field of View Angle: 2°, 10° Integral Sphere Diameter: Approx. 40mm / 1.6in Spectroscopy Method: Nano Integrated Spectral Device Wavelength Interval: 10nm Wavelength Range: 400-700nm Reflectance Measurement Range: 0-200% Reflectivity Resolution: 0.01% Measurement Method: Single measurement, average measurement (2-99 times) Measurement Time: About 1 second Interface: USB Screen: IPS Full Color Screen, 2.4in Battery Capacity: 1 x 3.7V rechargeable lithium battery 3000mAh (built in battery), capable of continuously measuring 8000 times per charge Light Source Lifespan: 10 years, 1000000 times Language: Simplified Chinese, English Storage: 100 instrument standard samples, 20000 samples; APP Massive Storage Measurement Condition: SCI Repeatability: ≤0.06 Caliber: 1 Include UV Light Source: No Camera Function: No Mobile App: Yes PC Software: Yes . Package List: 1 x Host1 x Calibration Box Base1 x Black Calibration Box1 x User Manual1 x USB Drive1 x USB Cable1 x 6mm Test Port (On the Host)