Pocket Size pH Meter. Measures pH 0 to 14 with a .1 pH resolution. LCD display. Includes meter, carrying case, calibration screwdriver, 2 x pH buffer powder and manual.
You can use a pH meter to check the pH of your water, mash, [test Star San effectiveness] and finished beer.
Update: Since this post was published the price, availability or promotion has changed. Check the product page for current description, price and availability. Also: Today’s Deals on Amazon
More: Recent Amazon Finds