Gas number – identifies a gas species
Model number – identifies a series model type
Part number – identifies a specific assembly
Identity – uniquely identifies a CPU board assembly*
Version number – indexes a specific assembly (shorter text)
Hardware revision – revision level of the electronics
Software revision – revision level of the software
* Id numbers displayed here are used to identify board level
components and are not intended to identify the complete
device. These numbers will not match serial numbers printed on
labels physically attached to the device.