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R307 Fingerprint Module consists of optical fingerprint sensor, high-speed DSP processor, high-performance fingerprint alignment algorithm, high-capacity R307 Fingerprint Module User Manual. User Manual: Open the PDF directly: View PDF PDF . Page Count: 24. Thumbnails Document Outline Attachments. Previous. Technical Parameters · Supply voltage: DC 4.2 ~ 6.0V · Supply current: Working current: 50mA (typical) Peak current: 80mA · Fingerprint image input time: <0.3It is an intelligent module which can freely get fingerprint, image processing, verified fingerprint, search and storage, and it can work normally without upper