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. -- Robert Farr (540) 668-7160 Check out http://www.thechileman.com for Hot Sauces, Salsas, Mustards & More!