Features: Excellent work, using industrial grade chips, can work stably for a long time. A simpler procedure can learn how to work for 5 minutes. Download the Excel attendance report from the USB flash drive. Using improved fingerprint recognition technology, the recognition time is less than 1s. High precision total reflection optical fingerprint sensor. T9 input method, you can change the name, department, frequency and other information. Easy to operate, autonomous control. For engineering customers, you can customize all the necessary features for a specific company. Specifications: Condition: Brand New Material: ABS plastics Color: Shown as picture Model: F20 Fingerprint capacity: 1000 Password capacity: 1000 Attendance record capacity: 100000 Recognition mode: fingerprint, password Verification mode: 1:N, 1:1 Recognition speed: less than 1 second FAR: ≤0.0001% FRR: ≤0.01% Communication mode: USB flash drive, USB, TCP / IP Communication interface: USB Download: U Disk U disk support format: FAT32 Sensor: High precision optical total reflection sensor Drop-proof: can withstand 1.2 meters free fall and fall 3 times Waterproof and dustproof: Meets IP54 standard Operating temperature range: 0-45 ° C Storage temperature range: 0-50 °C Ambient light intensity: 1000LUX Screen: 2.8 inch LCD Language: Chinese, Traditional Chinese, English, Spanish, Portuguese Resolution: 500 DPI Power supply: 5 V 1A Resolution: 500 DPI Packing size: 28.5*18.5*6cm/11.2*7.3*2.4in Package List: 1 * Fingerprint Attendance Machine 1 * Power Supply 1 * Hanging Board 1 * Instruction Manual 1 * Screw Package 1 * CD Disc 1、Excellent work, using industrial grade chips, can work stably for a long time. 2、A simpler procedure can learn how to work for 5 minutes. 3、Download the Excel attendance report from the USB flash drive. 4、Using improved fingerprint recognition technology, the recognition time is less than 1s. 5、High precision total reflection optical fingerprint sensor.