is this a solid combo meter?

http://www.amazon.com/Hanna-Instruments-Digital-Temperature-Testing/dp/B0002IXKFC

would you recommend?

That is the newest model from Hannah I believe. I've heard, no exp, that the combo meters are crap.

I have the same exact meter or a similar model. Mine is the 98129. Has pH/Temp/EC/PPM. I've owned it for about 5 months and have had no problems. It will work just fine.

I have the non combo after one of the junk screw calibrating models. My local shop trades them out if they are bad and was candid with me about the problem models...he said nobody brings the combos back...I would get it if you can afford it.

I just got one today. Looks fine. I am waiting on all the calibraton solutions and storing solution to get here. let yuo know later
BTW theres a you tube video on it for ph calibration.
http://www.youtube.com/watch?v=XTcDXM-59UE