Feature:1. Process of fingerprint identification, the newly extracted fingerprint feature value is successfully identified and then merged into the fingerprint database, so that the user can use it in the process as better as possible.2. 360° automatic correction and recognition, press the correctly registered finger at any angle on the module, the pair is successful, and you can pass.3. The fingerprint recognition rate is low, the maximum is 0.001%, and the false rejection rate (FRR) is less than 0.001%.4. USB model, supports up to 1000 fingerprint users. The fingerprint window adopts waterproof technology.5. Support the full range of windows. Support the secondary development of for Android platform. Communication interface includes UART, 3.3V‑TTL level or USB communication.Specification:Item Type: Optical Fingerprint ReaderMaterial: ABSMain Frequency: 120MHzFlash Memory: 1M BitsSRAM: 128KBFingerprint Collector: Optical acquisitionFingerprint Image Size: 640 x 480(pixel), 508DPIFingerprint Registration Capacity: 1000 PCS by defaultFake Recognition Rate (FAR): < 0.001%Rejection Rate (FRR): < 0.001%Comparison Method:1 : N and 1 : 1 comparisonFingerprint Template Size: 570 bytesSafety Level Setting: Level 1 to Level 5 can be setFactory Setting Value:Level 3Communication Interface: UART, 3.3V-TTL level or USB communicationSerial Communication ParameterParity None: 1PC Stop BitBaud Rate: 9600, 19200, 38400, 57600, 115200(BPS)Factory Setting: 115200BPSOperating Voltage DC 3.3V ± 10%Pin Functions:RST: Reset module, low level is activeVIN: Main power supply of fingerprint module, 3.3V by defaultPower Ground: GNDRX: Module receives data pinsTX: Module sends data pinsFinger Detection Function Circuit Power Supply: 3.3VWakeup: Finger detection function outputs pin, outputs high level when a finger is pressed on.Package List:1 x Optical Fingerprint Reader1 x USB CableNote:Professional use, do not understand this knowledge, please choose carefully.