Specification Brand : Generic BulletPoint1 : WSB series digital whiteness meter integrally formed by the light source. optical systems, detection systems, data processing and display systems, the overall degree of whiteness is blue R457. BulletPoint10 : Comparator function. | Data Hold function. | Data memory and read function.| Data logger function. | USB Interface. BulletPoint2 : WSB series digital whiteness meter mainly for white and brightness measurements near the surface of an object or a white powder. It can be obtained accurately consistent with the sensation level of whiteness. For the opacity of the aper can be accurately measured. BulletPoint3 : The instrument can be widely applied to measure the whiteness of textile, paint, chemicals, building materials, paper, cardboard, plastic products, white cement, ceramic, enamel, porcelain clay, talc, starch, flour, salt, detergents, cosmetics and other objects. BulletPoint4 : Measuring range: 0-199; Whiteness formula : Blue whiteness WB= R457 BulletPoint5 : Resolution : 0.1;Zero drift :≤0.2/10min BulletPoint6 : User calibration factor and color-correction functions. BulletPoint7 : Accumulation luminance measurement. BulletPoint8 : Max/Min/AVG function. BulletPoint9 : Backlight LCD display. Color : Multi Configuration : Test Windows for visible light transmittance or VLT. ExternallyAssignedProductIdentifier : 7616991029512 ExternallyAssignedProductIdentifier1 : 0702403520160 ExternallyAssignedProductIdentifier2 : 702403520160 ExternallyAssignedProductIdentifier3 : 00047084000632 IncludedComponents : Optical Lensometer ItemName : Wsb-1 Portable Digital Whiteness Meter Leucometer White Meter Wb=r457 ItemPackageDimensions_Height : 23.5 centimeters ItemPackageDimensions_Length : 6 centimeters ItemPackageDimensions_Width : 17.6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-photometers-and-light-meters Manufacturer : WSB Material : Plastic Material1 : Blend Material2 : Blend Material3 : Blend Material4 : Blend Material5 : Blend MeasurementAccuracy : / ModelName : Generics2a3gdyqt4 ModelNumber : WSB-1 NumberOfItems : 1 PackageLevel : unit PartNumber : Generics2a3gdyqt4 PowerSourceType : Battery Powered ProductDescription : (1)AC and DC power supply, low-power configuration, compact and beautiful appearance design, easy field or lab use(portable whiteness meter). (2)With a low voltage indication, auto power off and low-power circuit, which can effectively extend battery usage time( they push whiteness meter). (3)the use of large-screen high-definition LCD display, with comfortable reading and free from the influence of natural light. (4) The use of low-drift precision integrated and efficient long-life light source, which can effectively ensure that the instrument long time stability. (5)A reasonable, simple optical design, can effectively ensure the accuracy and reproducibility of the measured values. (6)The operation is simple, can accurately measure the opacity of the paper. (7)The use of national calibration standard whiteboard to deliver value, accurate and reliable measurements. Measuring range: 0-199 Whiteness formula : Blue whiteness WB= R457 Light source : LED light source According to test conditions: In line with GB/T3978 provisions 45/0 Show : LCD Display Measuring aperture : c15 Resolution : 0.1 Zero drift :≤0.2/10min Indication drift : ≤0.3/3min Measurement repeatability : ≤0.3 Ambient temperature : +5℃~+35℃ Relative humidity : <85%RH Power supply: DC 1.5V x 5 AA alkaline batteries: AC 110V/220V/ ; DC7.5V/0.2A