On February 8th, the Baltic countries will disconnect from the Russian power grid and switch to the Continental European electricity system. This transition is essential due to the need for improved energy independence from Russia amid ongoing geopolitical tensions. The Baltic nations will operate in 'island mode' for 33 hours before fully synchronizing with the European grid, which operates within a critical frequency range of 49.5-50.5 Hz. A tool has been developed to monitor the grid frequency during this operation, emphasizing the technological and practical aspects of grid management.