Quoting Robert Farr <rbfarr@erols.com>: > Dannie: > > Try the Cole-Parmer pH meter - last year, about $109. > > That's the cheapest best meter you're going to find. You'll also have > to invest in pH buffers to calibrate the meter. A couple pouchs will > come w/ the meter; you'll need to buy more after about a year. > I'm not familiar with the C-P meter, but make sure you get one with a two-point calibration (slope and intercept) as the are SIGNIFICANTLY more accurate and reliable.... Matt ------------------------------------------------- Sent through Cyberbuzz- A Server for the Students http://cyberbuzz.gatech.edu/