Weight: 32g Working current(Fingerprint acquisition): 20mA 1. Integrated image collecting and algorithm chip together, ALL-in-One 2. The flexibility to adapt to the conditions was the fingers, whether it is dry fingers, wet fingers, light texture fingerprints fingers, and old fingers, all have high recognition rate 3. The main application areas: can be embedded into a variety of end products, such as: access control, attendance, safety deposit box Model Number: R503 Voltage: DC 3.3V Effective collection area: Diameter 15mm Fingerprint capacity: 200 Resolution: 508 DPI Sensing array: 192*192 pixel colour:Silver Material:metal size:28mm Package Contents: 1*Capacitive Fingerprint Module Only 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 +/- 1-3cm.