This micro-processed controller serves for temperature control at high measuring accuracy. Beside resistance sensors and semiconductor thermo element the multi-sensor sensor entrance can equally process 0... 10V and/or 4...20mA. The PID regulation and/or thermostat regulation can be activated via parameter setting. Outputs are two relay contacts and an analogue output. Red LED lamps indicate the status of the output relays. The desired values and parameters determining the process are adjusted with a 4-field plastic foil keyboard. 900305.025