Key in combination with a timer and emitter

A key in combination with a timer and signal emitter, comprising:

• a casing, an upper cover, a key stem, a PC board and a timer being characterized by that:
• said casing having a through hole near the top edge thereof for attachment of a key ring;
• a receiving cavity being defined in said casing for the location of said PC board capable of performing remote control function;
• at the top of said receiving cavity being disposed a battery room for housing a battery;
• at the bottom of said receiving cavity being provided with a recess for the retaining of a neck portion of said key stem secured to said casing by screws;
• on the periphery of said casing being provided with a flanged protrusion for the retaining engagement with said upper cover;
• said upper cover being also provided with a through hole in conformance to said through hole of said casing with a large central opening defined thereon;
• a number of retaining cavities being defined on the peripheral wall of said central opening with which a lid being engaged in assembly;
• at the bottom of said upper cover being provided with a pair of parallel slots;
• at the central portion of said lid being provided with a round opening for the installation of said timer;
• on the outer periphery of said lid in conformance to said retaining cavities being disposed a number of projected hooks engaged with said retaining cavities in assembly so as to permit said lid and said upper cover to be integrally combined together;
• oval holes being defined at the bottom of said lid for housing buttons respectively whereby the assembly of the key, timer and the emitter can be integrally combined.