In addition to pH, voltage and temperature measurement, the 780 pH Meter also offers an automatic stirrer control, a multi-point calibration with up to nine buffers, a method memory and various monitoring functions. The automatic pH electrode test in conformance with GLP permits objective assessment of the electrode. The large backlit multi-line display provides an overview and makes the individual settings easy. The bi-directional RS-232 interface enables data transfer to a printer or PC.