Gas leakage detection device for natural gas home-entry

The utility model discloses a gas leakage detection device for natural gas home-entry, which comprises a shell and an outer shell, the outer side of the shell is provided with a connecting plate, the side edge of the shell is provided with a limiting groove, the inner side of the shell is connected with a circuit board through a screw, and the circuit board is connected with the shell through a screw. A circuit board is arranged in the outer shell, a gas sensitive sensor, a single chip microcomputer, a buzzer and a signal lamp are arranged on the circuit board through spot welding, a wiring port is connected to the lower portion of the circuit board through spot welding, the wiring port is connected with a battery jar through a flat cable, one side of the circuit board is electrically connected with a GPRS communication module, and a buckle is installed on the side edge of the outer shell. According to the gas leakage detection device for the natural gas home entry, when the gas sensitive sensor senses that t