To be honest I don't remember evering read anyone say a good thing about soil PH meters. They don't have a good rep for accuracy.
A meter (for example one from Milwaukee) will tell you the ph of the water that your using and is a very useful tool. With the meter and some Ph-up or Ph-down liquid, you can control the ph of the water.
The little drop test kits are a decent cheap option and, although not so accurate as a meter, they can be ok in a pinch. At least you can make your in going water in the range of about ph6.5.
rattlingdags Reviewed by rattlingdags on . Not Growing!! need help! I tryed to germinate 9 seeds in a damp papertowl in a ziplock then wraped up in 3 shirts and put inside a draw only 3 got a taproot i planted them in sould on | weed #1 on Jan/30/2012 10PM - weed #2 Feb/1/2012 10:53 AM - Feb/3/2012 1:02 PM | and the last seed i planted was number 3 and it was the first one to grow out of the soil in and the others have been in there for afew days so i dug up some of the top layer of dirty really slowlly on plant 1 and 2 till i saw the top of the seed i took Rating: 5