The PCE-228 pH meter is a very easy-to-use handheld pH / mV / C meter. The pH value and the temperature can be saved directly on the SD card (Excel file) or transferred directly from the pH meter to a PC via the RS-232 interface. - Measuring range: 0.00 … 14.00 pH - Resolution: 0.01 pH - Accuracy: (0.02 pH + 2d) - Memory: flexible via SD card memory 1 … 16 GB - Interface: RS-232