Patent ID: 6892570

Claim:
A pressure alarm device, comprising: a casing, disposed on a connecting member, and being integrally formed by a conductive connecting base and a non-conductive sleeve base, and said casing being fixed onto the sleeve base by a screw; an emitting device and a power supply device being disposed in the interior space enclosed by a connecting member and said casing; a pressure switch including a first contact point and a movable base constituting a second contact point; an adjusting member having an elastic member disposed between the adjusting member and the movable base; a first circuit connecting a connecting point to the emitting device; and a second circuit connecting the second contact point to the emitting device; characterized in that said connecting base further comprising a connector isolated by an isolating base having an operating hole and a conductive wire integrally formed with the connector; a first thread section formed in the connector being fixed onto an air nozzle of the tire by a screw and a second thread section being fixed to a valve nozzle by a screw; and a flexible film being disposed between the second thread section and the isolating base.