Feature: 1. [Highly Accurate] With multiple electronic color cards, the closest color card number can be quickly matched, and the matching accuracy of the color card is greater than 90%. 2. [QC Detection Function] With QC detection function, the color difference threshold can be set, a variety of color difference formulas are available, and a variety of color spaces are available, which is convenient for color measurement with multiple needs. 3. [Color Sharing] Color data can be imported and exported, color sharing can be measured through for WeChat, for QQ, email, with single button, small size, simple operation and portable. 4. [Stable Value] Colorimeter built in compensation light paths, stable value, allowing long period calibration. Built in rechargeable li battery, a single full charge can continuously measure 10,000 times. 5. [Color Difference Contrast] Utilizing the large memory of the mobile phone APP and the convenient operation of the screen, the function of the color difference meter is greatly improved and expanded. With color difference contrast function, and can realize the rapid QC detection. Specification: Item Type: Colorimeter Model: LS170 Material: ABS Battery: 1 x rechargeable li battery 3.7V 700mAh, a single full charge can continuously measure 10,000 times (Battery Included) Application: Chroma sampling, color difference detection and comparison Illumination Mode: 45/0 (45° circular illumination, 0° reception) Lighting Source: Full spectrum LED light source Measuring Caliber: Approx. 8mm / 0.3in Measurement Conditions: Light source D65, field of view 10° Measuring Time: About 1s Color Space: CIE Lab, Luv. LCh, Yxy. CMYK, RGB, Hex Color Difference Formulas: △E x ab, △E x 94, △E x cmc (2:1), △E x cmc (1:1) △E x 00 Repeatability: Standard deviation △E x ab, within 0.03 (measurement condition: after warm up correction, the average value of 30 measurements on the whiteboard at an interval of 3s) Size: Approx. 31.7 x 31.7 x 70.4 mm / 1.2 x 1.2 x 2.8 in Charging Interface: Type C Data Transmission: APP, Bluetooth Operating Temperature Range: 0~45℃, 0~85%RH (non condensing) Storage Temperature Range: -25℃~55℃ 0~85%RH (no condensation) Color Card Matching Accuracy rate: >90% Color Threshold: Can be set Compensation Optical Paths: Built in QC Inspection: √ Data Sharing: √ How To Use: Instrument operation 1. Power on/off Power on: In the power off state, short press the key to power on, and the indicator light flashes after power on Shutdown: Long press the button on the instrument to shut down; when the phone is not connected to Bluetooth, it will automatically shut down after 3 minutes of no operation, and when the phone is connected to Bluetooth, it will automatically shut down after 30 minutes of no operation 2. Bluetooth connection Turn on the instrument, open the APP software, and first display the LOGO interface. After displayed for 3 seconds, enter the "Connect Device" interface and automatically start searching for Bluetooth devices. The searched devices will be displayed at the bottom of the interface. Click the device that matches the SN of the instrument and wait for the device to connect. After the connection is successful, it will skip to "calibration interface" 3. Measurement After the APP is successfully connected to the instrument, enter the main measurement interface. There are two measurement modes, "color measurement" and "color difference contrast". After the APP is opened, the default "color measurement", the bottom of the main interface is two measurement switch buttons, the font of the button becomes blue when selected. The current measurement mode, instrument battery level, historical records, instrument model and connection status are displayed on the top information bar 4. Battery level Display the current power of the instrument. When the battery power is empty, charge it in time 5. History Click the history icon, if it is the color measurement interface, enter the "My Color" interface; if it is the color difference contrast interface, enter the "Comparison History" interface 6. Connection status Display the connection status of the instrument. If the APP is connected to the instrument, the corresponding model will be displayed; if the APP has been disconnected from the instrument, it will prompt that the device is disconnected and the model is empty. Package List: 1 x Colorimeter (Battery Included)1 x Data Line1 x Storage Box 1 x Cleaning Cloth1 x Manual Note: 1. When the instrument has not been used for a long time, it is recommended to use it after calibration.2. Please ensure that the sample is uniform and the surfaces is flat and clean, otherwise it will affect the measur