Several folks have asked for the name of my (Brambleberry Farm's) pH meter: Oakton Waterproof pH Tester 2 That's all the wording on it. Jim Fruth Brambleberry Farm Pequot Lakes, MN 56472 For jams, jellies, syrups and more: www.jellygal.com 1-877-265-6856 (Toll Free) 1-218-831-7018 (My Cell)