The 8619 is a microprocessor transmitter/controller for connecting sensors which deliver raw signals for pH, O.R.P. and conductivity and flow via pulses. It is the ideal device for measurement and control and as well dosing processes e.g. in applications of water treatment, food and pharma plants. Modularity in hardware and software offer high flexibility for adjusting it to the applications resulting in having a very good price to functionality relation. Sophisticated electronics and state of the art control algorithms ensure that optimum process control is maintained at all times with minimal operator intervention so achieving highest quality.