Xbee - Sensor connection

Hi, in my project I have to use Xbee for sending sensor data to the computer. But I have problem on how to connect sensor pins with Xbee on the board. Should I do this directly to the Xbee or to the Arduino?

I am using Xbee adapter which has 5 pins(VCC, GND, RX, TX, RST), So O dont know how to connect sensor to the Xbee. Thank you in advance for the help.

RST --> Not Connected
TX --> Arduino RX
RX --> Arduino TX