Feature:1. [3.5in Capacitive Touch Screen] Adopts a 3.5 inch capacitive touch screen with a good human computer interaction interface and is extremely convenient to operate.2. [High Accuracy] With multiple electronic color cards, can quickly matching the closest color card number, the color card matching accuracy rate is greater than 90%.3. [QC Detection] With QC detection function, the color difference threshold can be set, a variety of color difference formulas are available, and a variety of color spaces are available to facilitate color measurement for multiple needs.4. [Large Storage Space] Colorimeter with large storage space, which can store 1000 colors and 1000 color difference comparison records, so you can use it with confidence.5. [Long Period Calibration] Color meter built in compensation light paths, stable value, long period calibration, built in rechargeable lithium battery, and can continuously measure 10,000 times with a single full charge.How to Use:Specification:Item Type: ColorimeterModel: LS173Material: ABSBattery: 1 x rechargeable lithium battery 3.7V 4000mAh (Battery Included)Application: Chroma sampling, color difference detection and comparisonLighting Method: D/8, including specular reflection light (SCI)Lighting Source: Full spectrum LED light sourceMeasuring Diameter: Approx. 8mm / 0.3inMeasurement Conditions: Light source D65, field of view 10°Measurement Time: About 1sColor Spaces: CIE Lab, Luv, LCh, Yxy, CMYK, RGB, HexColor Difference Formulas: △E x ab, △E x uV, △E x 94, △E x cmc(2:1), △E x cmc(1:1), △E x 00Repeatability: Standard deviation △E'ab, within 0.03 (Measurement conditions: After warm up correction, measure the average of