1. Integrated collecting and algorithm chip , ALL-in-One2. The flexibility to adapt to the conditions the , whether it is dry , wet , light texture , and , all have high recognition rate3. The main application areas: can be embedded into a of end products, such as: access control, attendance, safety deposit box4. The R503 fingerprint module has a built-in algorithm chip5. The interface line spacing is 1.0mm, and length is 20cm. Thread diameter is 25mm, easy to install.Supply voltage: DC 3.3VWorking current: 30mA (typ.) current: 40mAFingerprint entry time: Less than 0.3 secondsAcquisition window area: 15mm in diameter pixel: 192*192 pixel Resolution: 508dpiMatch :Comparison (1:1)Search (1:N)Storage capacity: 200 piecesSecurity level: (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 level, 3.3V)Communication rate: (9600xN) where N=1~12 (default value N=6, ie 57600bps)working environment:Temperature: -20Celsius-+45CelsiusRelative humidity: 10%RH-85%RH (non-condensing)Colour:silverMaterial:Plastic + MetalSize:Fingerprint module height: 15mmPackage Contents:1 x Barcode Scanner ModuleOnly 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.