Ok I was looking and heard everybody saying your goin spend like 30-40 dollars on a ph meter and a moisture meter.... Well I found all that in one and for under ten dollars.
http://www.lowes.com/lowes/lkn?action=productDetail&productId=251966-83666-1240&lpage=none
http://www.lowes.com/lowes/lkn?action=productDetail&productId=251966-83666-1240&lpage=none