Leakage tester for building project

The utility model relates to a leakage tester for a building project, which relates to a test instrument. The utility model mainly solves the current problems of looking for leakage points in a housing roof, a bath, etc. The utility model is characterized in that a receive line 6 and a pointer type or digital displayer 5 are arranged in a box body; a contact 3 is arranged at one end of the receive line 6; power supply 2 is connected with the receive line 6 by conductor wires; the box body is provided with a switch 4. The utility model can be widely used for testing water leakage points, such as a housing roof, a bath, a lavatory wall, etc. to repair.