These virtually unbreakable sensors eliminate the problems with delicate glass pH bulbs found on other pocket-sized pH meters. The silicon chip sensors in these units store dry and need no maintenance. Clean up is easy with a toothbrush and detergent. The Pocket pH Meter is a great choice for inexpensive, convenient and accurate pH testing.
Product URL : http://www.markson.com/?CS=128930134&T=41298.28539
Last Updated : 03/16/2013