Any good PH testers?

I'm looking for a decent PH meter so I can test my nutrient solution. I don't have any experience with these. I saw a cheap one on amazon for $18 and there are a lot of complaints about having to calibrate it each time? How much are those calibration fluids? I don't want cheap but I also don't need top of the line. I guess I should get one that has temp correction right? Please point me in the right direction

Well the way I look at it u get what u pay for....I've had Hanna and few others and right now an using the blue lab ph pen and could not be more pleased with it

http://www.amazon.com/Milwaukee-Instruments-PH600AQ-Tester-Calibration/dp/B005H78ZI0/ref=sr_1_1?ie=UTF8&qid=1328390870&sr=8-1 thats the one i have..works great.

hanna are good. 100 bucks for a basic ph meter.

Desr said:

http://www.amazon.com/Milwaukee-Instruments-PH600AQ-Tester-Calibration/dp/B005H78ZI0/ref=sr_1_1?ie=UTF8&qid=1328390870&sr=8-1 thats the one i have..works great.

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I use this one as well. Only calibrate it once in a blue moon and its usually only off by .1-2 then its very easy to calibrate.

What about the calibration solution, is it reusable? How much do you use for each calibration?

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I use a Milwaukee PH600AQ Ph Tester, It works ok. I have to calibrate it every other day but its only off by .1 not bad. Tested it against the old dye method and seems to be the same results.