1. Integrated image collecting and algorithm chip together, ALLinOne.2. Fingerprint reader can conduct secondary development, can be embedded into a of end products3. Users can conduct secondary development, can be embedded into a of end products, such as: access control, attendance, safety deposit box, car door locks4. Low power consumption, low cost, small size, excellent performance.Professional optical technology, precise module manufacturing 5. Good image processing capabilities, can successfully capture image up to resolution 500 dpi.Have finger detection function.R307S use different chip when compare to R307.Model: R307SType: Optical Fingerprint ModuleInterface: USB, UART(RS232 TTL)Resolution: 508 DPIVoltage: DC 4.26V, or 3.3VFingerprint Capacity: 1000Sensing array: 300000 pixelFingerprint module size: 52 x 20 x 22 (mm)Effective collection area: 11 x 15 (mm)Scanning Speed: Less than 0.2 secondVerification Speed: Less than 0.3 secondMatching : 1: 1; 1: NFRR: 0.1%FAR: 0.001%Work environment: 20C50CWork Humidity: 1085%Antistatic capacity: 15KVAbrasive resistance intensity: 1 million timesCommunications baud rate (UART): (9600 x N) where N = 1 ~ 12(default N = 6, ie 57600bps)Material: plasticcolour: BlackPackage Contents: 1 x Fingerprint ModuleOnly 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 a little different from the real thing. The measurement allowed error is +/ 13cm.