Get easy, accurate measurements with the Milwaukee PRO 2-in-1 pH and Temperature Tester. Measure pH from -2.00 to 16.00 with an accuracy of ±0.05 pH. Automatic calibration and automatic temperature compensation make this meter easy to use and reliable. The meter also features a large LCD display that shows both pH and temperature simultaneously, and a stability indicator alerts the user when a stable reading has been obtained. The probe is easily replaceable to increase it's lifetime. For simple measurements, place the probe in the sample, gently stir, wait for the stability indication to show a stable reading and then freeze the reading.