The Brkert Type 8202 is a compact, but modular device, specially designed for measuring the pH or ORP value of fluids. Our device consists of a replaceable standard 120 mm pH or ORP probe, screwed in a sensor holder with integrated Pt1000 temperature sensor. This ensemble is plugged-in and screwed with a nut to an IP67 enclosure containing the electronic module with cover and a removable display. Brkert expedites thus maintenance work. The pHORP transmitter can operate independent of the display, but it will be required for programming the device (i.e. selection of pH or ORP sensor type, measuring range, engineering units.) and also for visualizing continuously the measured and processed data.