Be confident in your purchase, we're an Authorized PCE Instruments Dealer. Highlights: PC software included Li-ion battery 3 different color spaces Determines reference values to compare to samples White and black calibration The PCE CSM 1 Color Meter is a handheld unit and was developed for quality control. It offers a high accuracy and ease of use. When using the color meter, you can choose between different color spaces (CIE L*a*b*C*h, CIE L*a*b* and CIE XYZ). After a measurement, the reading can be used as a reference value while other readings can be recorded as a sample and later be compared to the reference value easily. In addition to the individual color space coordinates, the deviation between the reading is also displayed. It's possible to store up to 100 reference values and up to 20,000 samples on the device. The measured data can also be transferred to a PC via the USB interface. A special PC software is included in the package. Features: CIE L*a*b*C*h, L*a*b* and XYZ Automatic white and black calibration Determines reference values to compare to samples Rechargeable Li-ion battery measuring of different colors Suitable for many different surfaces 8/d geometry diffused illumination integrating sphere system illuminates sample from 8-degree angle Easy to use Incl. PC software 6 mm sample aperture Specifications: Geometry: 8/d Aperture: O 6 mm Sensor: Silicon photoelectric diode Color spaces: CIE L*a*b*C*h, CIE L*a*b, CIE XYZ Color difference formula ?E*ab, ?L*ab, ?E*C*H Observation Angle: CIE 10 Light source: D65 Light source device: LED blue light Errors between each equipment: ?0.80 ?E*ab Storage: 100 reference values, 20,000 samples Repeatability: Standard deviation within ?E*ab 0.08 Average of 30 measurements of standard white plate Power supply: Rechargeable lithium-ion battery. 3.7 V @ 3200-mAh Charging time: 8 hours Battery life: Approx. 5,000 measurements Lamp life: 5 years, more than 1.6 million measurements Storage conditions: Air temperature: 0 - 40C / 32 - 104F Air humidity: 0 - 85% RH, non-condensing Dimensions: 205 x 67 x 80 mm / 8.07 x 2.63 x 3.14 in Weight: 500 g / 17.6 oz What's Included: 1 x Colorimeter PCE-CSM 1 1 x USB cable 1 x Li-ion battery 1 x AC power adapter / charger 1 x Wrist band 1 x Calibration plate (white) 1 x Lens cap (serves as black calibration plate) 1 x Soft carrying case 1 x PC software 1 x User manual