The Type 8202 is a compact measuring device designed for the measurement of the pH value or redox potential (ORP): - pH value: in clean or contaminated liquids or liquids containing solids, sulphides or proteins. - the redox potential: in clean or contaminated liquids or liquids containing solids, sulphides or proteins which may present low conductivity. Thus, due to the design of the measuring device, Bürkert simplifies installation and maintenance work. The display is only required for start-up, configuration (e.g. selection of pH/ORP measurement, measuring range, units, calibration, limit values...) or as a process value display. The device Type 8202 is available - with three adjustable outputs : two digital outputs and one analogue output - with four adjustable outputs: two digital outputs and two analogue outputs. The Type 8202 converts the measuring signal, displays various values in different measuring units (if display is mounted) and computes the output signals, which are provided via one or two M12 plug-in connections.