External getter pump device of gas detector

The utility model discloses an external getter pump device of a gas detector, and mainly relates to the technical field of gas detection. Comprising a gas detector and a getter pump device connected with the gas detector. A concentric annular electrode is arranged at the bottom of the gas detector; a telescopic probe electrode is arranged on the annular PCB in the upper end cover at the top of the getter pump device, and after the gas detector and the getter pump device are installed, the top of the probe electrode is in contact with the concentric annular electrode; one end, opposite to the concentric annular electrode, of the probe electrode has pre-compression amount to ensure that the probe electrode is in contact with the concentric annular electrode; and an upper end cover at the top of the getter pump device is arranged below the gas detector. The beneficial effect of the utility model is that the problems of low production efficiency, poor product reliability and potential safety hazard caused by exte