Will this PH meter work?

my dilemma: i have 5 plants in well water. not growing very much. i haven't had to ability to purchase anything for a bit but i'm ready to dive into the hobby now, sooooo... where to start? need to invest in a ph meter of sorts. which is best? money obviously is where mind is at but i wanted advice from those who have used dome before.

[ame=http://www.amazon.com/pH-Meter-SMS120-w-Alert/dp/B00178V7BU/ref=lh_ni_t_]Amazon.com: pH Meter SMS120 w/Alert: Kitchen & Dining[/ame]

or

[ame=http://www.amazon.com/Hanna-Instruments-98129-Conductivity-Tester/dp/B002ZG8L58/ref=sr_1_1?ie=UTF8&qid=1296512366&sr=8-1]Amazon.com: Hanna Instruments HI 98129 pH, Conductivity, Tds, Temp Tester: Industrial & Scientific[/ame]

thanks!


EDIT: i lied. either that second one. which is the all in one for 120.00 or this 35.00 ph tester and then get a tds meter as well for around 20.00

http://hannainst.com/usa/prods2.cfm?id=002003&ProdCode=HI 98103