Honeywell RAEGuard 3 User Manual page 52


STEL settings: STEL is the short-time contact allowable concentration,
which representing the 15-minute time-weighted average allowable contact
level. The default is disabled. This menu is only effective for toxic gas
(excluding: oxygen, catalytic combustion flammable gas and NDIR infrared
flammable gas). The operation process is as follows:

Range settings: RAEGuard 3 is different from other products. Users can set
RAEGuard 3 User Manual
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