Hardware connection: Module via a serial communication interface, directly with 3.3V or 5V power microcontroller communication: Module data transmission feet (2 Foot TD) connected to the data bit machine receiving end (RXD), data receiver module feet (3 feet RD) connected to the data sender bit machine (TXD). For the -232 level (for example: PC machine) for PC communication, increase the level conversion between the module and the computer Application:Computer Condition:New Type: ICs Dissipation Power:7.2W Model Number:FPM10A Supply voltage: DC 3.6 ~ 6.0V / 3.3V Supplying Supply Current: Current: Less than 120mA current: Less than 140mA Fingerprint time: Less than 1.0 seconds Window size: 14 x 18 mm Matching mode: Match mode (1:1) Search mode (1: N) Signature File: 256 bytes Template files: 512 bytes Storage capacity: max 200 Safety level: (from low to high: 1,2,3,4,5) Accept Rate (): Less than 0.001% (security level 3) Reject Rate (FRR): Less than 1.0% (security level 3) Search time: Less than 1.0 seconds (1:500, the mean) PC Interface: UART (TTL level) or USB2.0 / USB1.1 Communication rate (UART): (9600 x N) where N = 1 ~ 12 (default value N = 6, ie 57600bps) Working environment: Temperature: -20 - +50 Relative Humidity: 40% RH-85% RH (non-condensing) Storage environment: Temperature: -40 - +85 Relative humidity: Less than 85% H (non-condensing) Dimensions (L x W x H): Split: Fingerprint sensor: 56 x 20 x 21.5mm One: 56 x 20 x 21.5mm Circuitry (e.g.: MAX232 circuit) colour:black Material:Metal +pc Package Contents: 1 * Fingerprint reader Sensor Module Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.