The first of its kind, the PH-1 pH meter measures and records pH values through an iPod, iPhone or iPad device. The accessory plugs into the standard Apple dock connector and uses a Sensorex pH electrode to measure pH with accuracy to .01 pH. The free Sensorex app displays pH, millivolts, ambient temperature and solution temperature in real time. Data history can be grouped by date or location and exported individually or in .csv format via email.