Gas detection transmitter

The utility model provides a gas detection transmitter, which comprises an upper shell and a lower shell, a cavity is arranged in the lower shell, a master control PCB (printed circuit board) and a master control chip are arranged in the cavity in the lower shell, and the gas detection transmitter is characterized in that an accommodating cavity is arranged on the outer side surface of the lower shell, is provided with an opening and is integrally arranged on the lower shell, and the master control PCB and the master control chip are arranged in the accommodating cavity. A sensor module and a sensor PCB are arranged in the containing cavity, and the sensor PCB is electrically connected with the master control PCB. According to the transmitter, the sensor and the transmitter are integrated together for use, so that the step of mounting the sensor and the transmitter on site by workers is omitted. 本实用新型提出一种气体检测变送器，包括上壳体、下壳体，下壳体内部具有空腔，下壳体内部空腔中设有主控PCB板和主控芯片，其特征在于，下壳体的外侧表面上设有一个容纳腔，容纳腔有一个开口，容纳腔一体设置在下壳体上，容纳腔内部设有一个传感