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Two family doorphone COSMO, black je v e-shopu Cbelektro v kategorii nezaradené produkty za cenu 110,50 €. Všechny nezaradené produkty koupíte online v internetovém obchodě Cbelektro, kde máme další zboží od značky ORNO.
Analog CYFRAL intercom sets are widely used, however, they are most often installed in single-family houses, small enterprises, but also in public use institutions The COSMO doorphone uses a duplex signal transmission, and the uniphone is connected to the call panel with a two-wire line. This line transmits the following signals: call (bell), acoustic (speech) and the signal controlling the electromagnetic catch.