<b>Product description:</b><br /> Model WR-10 QC<br /> <br /> Color Space:CIELAB<br /> Color Difference Formula:△E*ab<br /> Measurement Caliber:φ8mm<br /> Illumination Condition: CIE Recommendation：8/d<br /> Light Source: D65<br /> Sensor: Photodiode array<br /> Observer:CIE 10° Standard observer<br /> Measurement Range: L: 0 to 100<br /> Repeated Accuracy: △Eandlt;0.08<br /> Table Difference:△Eandlt;0.2<br /> Measurement Interval:1 Sec.<br /> Storage Capacity:Type sample data : 100 groups with testing sample data: 100 groups<br /> Lifetime of Bulb: 5 years more than 1.6 million measurements<br /> Display Screen: TFT true color 2.8inch(16:9)<br /> Language:English/Simplified Chinese<br /> Working Temperature Range: 0℃-40℃（32℉-104℉)<br /> Storage Temperature Range: -20℃-50℃（-4℉-122℉）<br /> Humidity Range Relative humidity less than 85%,without condensation<br /> Weight: 700g<br /> Size: 199*68*90mm<br /> Package Size: 250*80*100mm<br /> Battery Charging Time 8 hrs<br /> Battery Li-ion battery, 5000 times Measurement<br /> Standard Accessories AC adapter/ 3000mAH Li-ion battery<br /> Optional Accessories Flour measuring device/Micro printer<br />