Lutron YK-21PH – PH Meter

Lutron YK-21PH is a pH meter that measures from 0 to 14 pH with a precision of 0.01 pH. It features a large LCD display with easy-to-read digits, accurate readings within 0.1 pH between pH 4 and pH 10, and handy features like data hold and comes in a professional case, all at an affordable price.