Water level alarm with anti-permeation structure

The utility model discloses a water level alarm with an anti-permeation structure, and relates to the technical field of water level alarms. The alarm comprises an alarm body and a hollow rod, the lower surface of the alarm body is fixedly provided with two probes, the inner wall of the hollow rod is provided with a movable rod, one end of the hollow rod is fixedly connected with a mounting plate, the surface of the mounting plate is provided with uniformly distributed mounting holes, and a water seepage prevention assembly is arranged between the movable rod and the alarm body. The water seepage prevention assembly comprises a sleeve, the face, close to the probe, of the alarm body makes movable contact with the inner wall of the sleeve, and two penetrating holes are formed in the lower surface of the sleeve. The alarm body is placed in the sleeve, the probe penetrates through the rubber sealing ring, meanwhile, the insertion rod is in interference fit with the insertion hole, and due to the design of the sl