Sensorex’s PH-1 pH meter accessory, compatible with Apple iPod, iPhone and iPad devices, measures and records pH values in the lab or field for use in a range of applications. The free Sensorex app displays pH, millivolts, ambient temperature and solution temperature in real time. The CE marked device supports 1, 2, 3, or more calibration points, and it has a measurement range is 0-14 pH that operates in ambient temperatures of 0-40 C, in solutions of 0-100 C.