Is it possible to change FS2012 flow sensor flow rate 0.015 to 0.001 and how?

The FS2012 flow sensor can measure flowrates from 0.015. But I want it to scale from 0.001. For that I have to put an amplifier at the output of the sensor and how much gain should be? I am working on this sensor for the first time, if anyone can help with this, it would be great.