Gas detector device control based upon accessory identification

A method of operating a gas detection device for detection of one or more gas analytes in an environment, the gas detection device including:

• a housing comprising an inlet via which gas to be sampled from the environment enters the housing,
• a control system within the housing comprising a processor system and a memory system in communicative connection with the processor system, and
• one or more gas sensors within the housing in fluid connection with the inlet and in communicative connection with the control system, wherein each of the one or more gas sensors is independently responsive to one of the one or more gas analytes,
• the method, comprising:
• controlling flow rate of gas from the environment through an accessory device assembly comprising one or more accessory devices in fluid connection with the inlet via the control system on the basis of data for the accessory device assembly in fluid connection with the inlet.