LS173 Digital Colorimeter 3.5in Touch Screen Color Tester Color Difference Analyzer for Chroma Sampling Item Type: Colorimeter Model: LS173 Material: ABS Battery: 1 x rechargeable lithium battery 3.7V 4000mAh (Battery Included) Application: Chroma sampling, color difference detection and comparison Lighting Method: D/8, including specular reflection light (SCI) Lighting Source: Full spectrum LED light source Measuring Diameter: Approx. 8mm / 0.3in Measurement Conditions: Light source D65, field of view 10° Measurement Time: About 1s Color Spaces: CIE Lab, Luv, LCh, Yxy, CMYK, RGB, Hex Color Difference Formulas: △E x ab, △E x uV, △E x 94, △E x cmc(2:1), △E x cmc(1:1), △E x 00 Repeatability: Standard deviation △E'ab, within 0.03 (Measurement conditions: After warm up correction, measure the average of 30 times of white board at 3s interval) Product Size: Approx. 86 x 62.5 x 158 mm / 3.4 x 2.5 x 6.2 in Battery Power: Rechargeable lithium battery 3.7V 4000mAh x 1, can measure 10000 times continuously after a single full charge Display: 480 x 320 dot matrix IPS color screen System Language: Simplified Chinese, English Charging Interface: USB (Type C) Data Interface: USB Operating Temperature Range: 0~45℃, 0~85%RH (non condensing) Storage Temperature Range: -25~55℃, 0~85%RH (non condensing) Storage Space: Color x 1000, color difference contrast x 1000 Compensation Optical Paths: √ QC Quick Test: √