This fingerprint reader can store 10 fingerprints, allowing you to set up fingerprint access for multiple accounts. Set up fingerprints for each family member with a separate account and automatically log in to their own accounts using their fingerprint. Features 360-degree automatic calibration and recognition; simply touch the correctly registered finger at any angle on the module to complete the comparison. Multifunctional design allows for independent fingerprint collection, registration, matching, and searching. Mini fingerprint reader is used for fingerprint attendance machines, fingerprint root searches, fingerprint tracking machines, fingerprint storage cabinets, one-button automatic operation, fingerprint printing, fingerprint locks, and fingerprint security. Compact structure, easy to carry and store, low power consumption, universal interface, high reliability, and easy to use. CPU: 144Hz main frequency, 1M bit flash memory, 128KB SRAM Fingerprint Capture: Capacitive capture Fingerprint Image Size: 192 x 192 (pixel), 508 DPI Fingerprint Registration Capacity: 10 by default, expandable to 5,000 False Acceptance Rate (FAR): <0.001% (security level 3) Rejection Rate (FRR): <0.1% (security level 3) Matching Method: 1:N and 1:1 matching Fingerprint Template Size: 570 bytes Security Level Setting: Level 1 to Level 5 configurable, factory default value: Level 3 Processing Speed: Fingerprint feature extraction time <0.45 seconds 1:N matching time (for 3000 full registrations) <1.5 seconds Communication Interface: UART, 3.3V-TTL level or USB communication Serial Communication Parameters: No parity Parity = NONE, 1 stop bit Stop bit = 1 No flow control = NONE Baud rate of 9600, 19200, 38400, 57600, 115200 (bps) Factory Setting: 115200bps Operating Voltage: vin voltage: DC3.3V±10% Operating Current: less than 30mA, peak less than 80mA (instantaneous current) when collecting fingerprints Sleep Current: less than 10uA working environment Operating Temperature: -10℃-60℃ Includes: 1 x Fingerprint Key Reader