Fingerprint Readers descriptions We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. Circular Fingerprint Identification Module With Indicator Light. Features: Built-in Algorithm Chip, Circular Acquisition Chip, Using a 192x192 Sensor, It Can Store 500 Fingerprint. Integrated Image Collection and Algorithm Chip Together, It Has Professional Performance. High Recognition Rate, Flexible for Using, It Can Adapt to Dry Fingers, Wet Fingers, Light Texture Fingerprints Fingers, and Old Fingers. Wide Application Areas, Can Be Embedded in a Variety of Final Products, Such As: Access Control, Assistance, Safety Box. Simple Installation, No Need Complicated Tools, Convenient for Using. Specifications: Item Type: Fingerprint Identification Module Material: Metal Power Supply Voltage: DC 3.3V Operating Current: 30mA (Typical Value) Current: 40mA Fingerprint Image Entry Time: 0.3 Seconds Acquisition Window Area: Diameter: 15mm/0.6in Image : 192x192 Image Resolution: 508dpi Comparison Method: 1:1 Search Mode: 1:N Storage Capacity: 500pcs Safety Level: Level 5 (from Low to High: 1, 2, 3, 4, 5) FAR: 0.0001% FRR: 1.0% Search Time: 0.3 S (While 1:1000, Mean Valve) Upper Interface: RS232 (TTL Logic Level, 3.3v) Communication Baud Rate: (9600 a?N) Bps, N=1-12 (default Value N=6, 57600bps) The Temperature: - 20 - + 45 Relative Humidity: 10RH85RH (No Condensation) Package List: 1 X Fingerprint Identification Module . Products number : SOMONO81668