This multi-functional design independently completes fingerprint registration, comparison, and searching. Convenient to carry and use, it features low power consumption, a universal interface, and high reliability, making it easy to operate. Scalable capacity: 1:N identification (5000 users, non-modular identification, response time less than 2.5 seconds). It can be integrated into systems to create a fingerprint identification product tailored to customer needs. During fingerprint identification, after the latest extracted fingerprint characteristic value is successfully identified, it's merged into the fingerprint database, improving usability over time. Automatic correction and identification function: press the correctly registered finger at any angle on the module, and the comparison will be completed. Low false acceptance rate: up to 0.0001%; low rejection rate: up to 0.0001%. Ideal for fingerprint access control machines, fingerprint searches, fingerprint attendance machines, fingerprint storage cabinets, one-click autorun, fingerprint writing, fingerprint locks, fingerprint security, fingerprint terminals, fingerprint management hospital security, intelligent monitoring equipment, etc. Specification: Condition CPU: 144 MHz Main frequency: 1M Flash Bit, 128KB for SRAM Fingerprint reader: Capacitor Fingerprint size: 192X192 (pixels), 508 Fingerprint registration capacity: 1000 by default, expandable to 5000 Identification rate (FAR) Less than 0.001% Deviation percentage (fRR) Less than 0.1% Fingerprint size: 570 bytes Security level settings: from level 1 to level 5. The default is level 3 Processing speed: fingerprint extraction time Less than 0.45 seconds Communication interface: UART, level 3.3 V-TTL or usb connection Serial communication parameters: Parity = No; 1 stop bit = 1 Flow control = None Transmission rate: 9600, 19200, 38400, 57600, 115200 (Operating voltage: DC 3.3 V ± 10% Working current: less than 30 mA, and the maximum value for fingerprints is less than 80 mA (instantaneous current) Inactivity current: Less than 10uA Working environment protection: Operating temperature: -10 Celsius -60 Celsius Relative humidity: 20% -80% Color: black Material: plastic Size: about 6.5 x 3.8 x 1.7 cm Package contents: 1*Fingerprint register Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real one. The allowed measurement error is +/- 1-3 cm.