See its datasheet.
Only 3 pins to connect: Ucc / Gnd / analog signal out.
Aout goes to an analog input. The datasheet shows the function needed to calculate pressure.
Please check my math:
Aread = 1023 * (0.0012858*P + 0.04)
Aread = 1.31537*P + 40.92
float Pressure = (float(analogRead(A0)) - 40.92)/1.31537 ;