The Milwaukee Waterproof pH55 PRO pH/Temp. Tester is one of our most accurate cost effective, well rounded, rugged and reliable testers in the market featuring dual level LCD readouts, easily replaceable probe and extended pH ranges to meet almost any application. It's simple 1 or 2 point automatic calibration is simple-to-use and offers TWO sets of memorized buffers to select.  Ideal for use in aquariums, hydroponics, horticulture, education, pools, beer and many other applications.

PH RANGE: -2.0 – 16.0 pH

RESOLUTION: 0.1 pH

ACCURACY: ±0.1 pH

CALIBRATION: Automatic 1 or 2 point with 2 sets of pre-memorized buffers (pH 4.01, 7.01, 10.01) or (pH 4.01, 6.86, 9.18)