Menu-guided test procedure for performing pressure tests on house installations using air pressure. When using the integrated pump in the Druktest max, the following test sequence can be performed fully automatically: pressure build-up, stabilization, testing, pressure release. The following parameters are freely adjustable: Test pressure (up to max. 1500 mbar) duration stabilization phase (0 to max. 60 min.) duration main test (up to max. 60 min.) Permissible pressure drop (0 - 1500 mbar) Integrated pump suitable for test volumes from min. 0.1 liters to max. 100 liters