The smart digital indicator is used for the electronic display of various process variables. The process variables are acquired by the device via RTD temperature probe, thermocouple, current 0(4) to 20 mA or voltage 0 to 10 V. Further functionalities are limit value monitoring, min/max value storage, hold function and tare function. The device is available with 2 relays or with 1 relay and 1 digital output (DC 0/14 V). The device is characterized by simple, clearly structured operation supported by texts in English, German, French, and Spanish. Process values, texts, and parameters are shown in two 18-segment LCD displays. Additional display elements inform about the switch positions of the outputs, timer status, and temperature unit.