XPL oder RRDTools

Hello,

My project die for pool, measuring pH, ORP, temp .... aruino with mega 2560. I would like to view the values ​​graphically. Malheureusementje know nothing. I read with xPL could do RRDTools but this was easier. What to choose. I visited the site in RRDTools but I do not understand ... Peut_on RRDTools install with Win7? Thank you to tell me how to install this software. Best Regards Georges