Description Overview Rechargeable lithium-ion battery Automatically white and black calibration Steady performance Degree of whiteness Measurement of different colors Application at many surfaces Easy measuring steps Yellowness Specifications Viewing geometry: 8/d Measuring aperture: 8 mm / 4 mm Detector: silicon photoelectric diode Charging time: 8 hours Dimensions: 205 x 70 x 100 mm Packaged dimensions: 1.5 kg @ 320 x 150 x 150 mm Additional Information More information is available upon request.