The electronic thermostat can be used as a heating or cooling thermostat and measures the process variable using a resistance thermometer. The device is equipped with a digital input and either two relays or one relay and one digital output. It features a simple, clearly structured operation supported by texts in the local languages of German, English, French, and Spanish. Process values, texts, and parameters are displayed on two 18-segment LCD screens. Additional display elements provide information about the switching states of the outputs, the timer status, and the temperature unit. Print terminals with push-in technology allow for quick electrical installation. Operation, parameterization, and configuration are carried out via a membrane keypad with four buttons. With the help of the setup program, the devices can be conveniently configured with a PC. During configuration via the USB interface, no separate power supply is required.