FPM10A Fingerprint sensor! QUESTION!

Hey, i need to buy Fingerprint sensor but this module has 6 pins, instead of 4.
Can i use it?

LINK: https://s3-ap-southeast-1.amazonaws.com/a2.datacaciques.com/17/06/13/66x4qxsn5pz1v634/b029d1269be6527c.jpg

Item Description

Supply voltage: DC 3.6 ~ 6.0V / 3.3V Supplying
Supply Current: Current: <120mA
Peak current: <140mA
Fingerprint image time: <1.0 seconds
Window size: 14 ╳ 18 mm
Matching mode: Match mode (1:1)
Search mode (1: N)
Signature File: 256 bytes
Template files: 512 bytes
Storage capacity: 1,000
Safety level: five (from low to high: 1,2,3,4,5)
False Accept Rate (FAR): <0.001% (security level 3)
False Reject Rate (FRR): <1.0% (security level 3)
Search time: <1.0 seconds (1:500, the mean)
PC Interface: UART (TTL logic level) or USB2.0 / USB1.1
Communication baud rate (UART): (9600 ╳ N) bps 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: <85% H (non-condensing)
Dimensions (L ╳ W ╳ H):
Split: Fingerprint sensor: 56 ╳ 20 ╳ 21.5mm
-One: 56 ╳ 20 ╳ 21.5mm

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 RS-232 level (for example: PC machine) for PC communication, increase the level conversion between the module and the host computer
Circuitry (e.g.: MAX232 circuit)

this module has 6 pins, instead of 4.
Can i use it?

Have you got any details of what the 6 connections are ?

The spec indicates that it has a TTL level Serial interface which sounds perfect for interfacing with the Arduino

The fifth wire is an active low 'something is touching the sensor screen' output. The sixth wire is the touchscreen Vcc. I wire it to pin 4, Vcc. HTH