PH Meter Milwaukee PH55

The pH55 waterproof tester has a large dual-level LCD that displays pH (-2.0 to 16.0 pH) and temperature (23°F to 221°F). It has a stability indicator and hold function that freezes the display for easy and accurate recording. The large disply also has graphic symbols to guide you through all applications. Automatically compensates for temperature with a new faster and more precise temperature probe. Calibration is made automatically in 1 or 2 points with memorized standard and NIST buffer sets. Auto power off saves battery life after non use. Accuracy +/-0.1pH and +/- 0.5°F.