Anybody have experience with these two 24-7 PH meters?

I am looking at getting one of these two meters for my hydro system. My clones are almost rooted. I was wondering if anybody has experience with these two meters or knows which is better quality. The Control Wizard 24-7 meter or this Hanna meter.I posted this in the Hydro section and did not get that many responses.
Thanks here are the 2 links:
http://www.bghydro.com/BGH/itemdesc....MCOHACL&eq=&Tp=

http://cgi.ebay.com/Control-Wizard-2...3A1%7C294%3A50

not familiar with them but i would buy the ebay one...it has ppm temp and ph

pH probes (sensors) tend to 'wear out'
Ones that don't are less accurate. So price replacement probes. Think inkjet printers/carts

EC/ppm is a different story.

Well I had the Control-Wizard and it did not work well from the start .
I now use a Hanna meter , and decent luck so far !
The one thing to keep in mind is that a continuous meter needs to be cleaned and calibrated often .
Being submerged in nute solution all the time ,They tend to freak out with your res fluctuations . So it is a good rule of thumb to stay on top of your meters as you do on your res .
Good Luck ! Peace !

Ok thanks for the info

I think this meter might be your best bet, I think it is new to the market. It does EC/Temp/Ph/PPM.

http://www.4hydroponics.com/grow_room/grochek.asp