Menu-guided test sequence for performing leak tests on test objects with water, e.g. open containers, tanks, reservoirs, pools. The leak test can be performed according to your own specifications using this menu option. During the test, the smart memo uses an EDS2 level probe to determine the current water level, as well as its possible drop, and finally generates an evaluation of the test in accordance with the test requirements entered. An EDS2 level probe is required to carry out this menu function.