The diploma thesis deals with the proposal of the system for wireless electric fire-alarm signalisation (EPS) in a chosen cafe. The theoretical part describes the importance of the electric fire-alarm, then the characteristics and importance of EPS components. In the practical part, which deals with the solution of wireless EPS system proposal, we have chosen a suitable EPS system. The system proposal is in accordance with EN 54 1-25 and STN 73 0875 norms. System will secure an early and accurate fire detection and it will keep the staff informed, or contact the fire brigade unit and it will shorten the time necessary to put out the fire.