Connecting HX711 load sensor to Arduino

Hi all,
I just bought this load sensor :
http://he.aliexpress.com/item/Portable-Electronic-Weight-Sensor-Load-Cell-Weighing-Sensor-Scale-5KG-Driver-Voltage-5-10V/32416155995.html
and I do not know how to connect it to the Arduino.
I do not have any other load sensor module, and I wonder if it can work without it (the module).
I have 4 wires:
red : + (vcc,5V)
black : - (GND)
white
green
Can you please help me?
Thank you :slight_smile:

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