1. Integrated image collecting and algorithm chip together, ALL-in-One 2. The flexibility to adapt to the conditions the , whether it is dry , wet , light texture , and old , all have high recognition rate 3. The main application areas: can be embedded into a of end products, such as: access control, attendance, safety deposit box 4. The R503 fingerprint module has a built-in algorithm chip 5. The interface line spacing is 1.0mm, and length is 20cm. Thread diameter is 25mm, easy to install. Supply voltage: DC 3.3V Working current: 30mA (typ.) current: 40mA Fingerprint image entry time: Less than 0.3 seconds Acquisition window area: 15mm in diameter Image pixel: 192*192 pixel Image Resolution: 508dpi Match : Comparison (1:1) Search (1:N) Storage capacity: 200 pieces Security level: five (from low to high: 1, 2, 3, 4, 5) Recognition Rate (): Less than 0.0001% Authentic rejection rate (FRR): Less than 1.0% Search time: Less than 0.3 seconds (1:1000, average) computer interface: RS232 (TTL logic level, 3.3V) Communication rate: (9600xN) where N=1~12 (default value N=6, ie 57600bps) working environment: Temperature: -20Celsius-+45Celsius Relative humidity: 10%RH-85%RH (non-condensing) Colour:silver Material:Plastic + Metal Size:Fingerprint module height: 19mm Package Contents: 1 x Barcode Scanner Module Only the above package content, other products are not included. Note: Light 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.