This invention relates to a recording method of combustible gas warner of recording type and electronic devices thereof, consisting of DC power source, power source for sensors, power source for single chip microcomputer, sensors, single chip microcomputer, memories, relays and a buzzer. The parameters of variation of status of sensors and variation of time are stored by the single chip microcomputer in the memories, so that the reasons resulting in warn to occur can be quantized by the data, being helpful to later analysis of responsibility. The warner has simple structure, lower cost and easy operation and occupies less space, being able to be connected to other managing apparatuses through serial interfaces, so that being suitable to factories, families, architectural and combustible gas transmitting installations. |