The sensor is the equivilent of a resistor bridge.
On the most fundamental level, connect IN+ to your supply voltage OUT+ to your Arduino analog in pin and IN-and OUT- to GND. This is assuming you have a "K" version, if you have an "L" version you will need a shunt resistor.
You will definately want an opamp to increase the signal level (right now it is only 100mV full-scale. Since the Arduino is 10-bit (~5mV per count), you will only get 20 counts from 0 to maximum. I'm assuming you need more resolution than 20 counts.
I'm a complete beginner too and I'm trying to do something very similar. Initially I need to read the measurements of a digital pressure sensor.
I suppose my question is the same as well- how would you suggest I do the electronic connection?
Please be gentle, my knowledge of electronics is very basic!
Thanks
That sensor has 8 pins. 5 of them are labeled N/C, which means, logically enough, No Connection. The Vs pin gets connected to +V of the Arduino. The GND pin gets connected to ground of the Arduino.