Integrated image collecting and algorithm chip, ALL-in-One. Fingerprint reader supports secondary development and can be embedded into various end products. Suitable for applications such as access control, attendance systems, safety deposit boxes, and car door locks. Low power consumption, low cost, compact size, and excellent performance. Features professional optical technology and precise module manufacturing. Advanced image processing capabilities with successful capture up to 500 dpi resolution. Includes finger detection function. R307S uses a different chip compared to R307. Model: R307S Type: Optical Fingerprint Module Interface: USB, UART (RS232 TTL) Resolution: 508 DPI Voltage: DC 4.2-6V or 3.3V Fingerprint Capacity: 1000 Sensing Array: 300000 pixels Fingerprint Module Size: 52 x 20 x 22 mm Effective Collection Area: 11 x 15 mm Scanning Speed: Less than 0.2 second Verification Speed: Less than 0.3 second Matching Modes: 1:1, 1:N FRR: 0.1% FAR: 0.001% Operating Temperature: -20C to 50C Operating Humidity: 10% to 85% Anti-static Capacity: 15KV Abrasion Resistance: 1 million cycles Communication Baud Rate (UART): (9600 x N), where N = 1 ~ 12 (default N = 6, 57600 bps) Material: Plastic Color: Black Package Contents: 1 x Fingerprint Module Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement error allowed is +/- 1-3 cm.