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Time Weighted Average Display
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TWA (time weighted average) CO readings are calculated for the past 15 minutes,
and the past 1 to 8 hour(s). When the 15 minute TWA is not yet unavailable, the
number of seconds remaining will countdown. For the 1 to 8 hour TWA, the 1 hour
TWA will say
Pending
until the 1 hour TWA is available. The TWA duration will
continue to increase every hour up to a maximum of 8 hours. Similar to the home
page, these values are updated once per second.
Note: TWA values can only be calculated while the app is on and
connected to the device. Upon connection the TWA reading will
begin calculating the 15 min TWA.
Summary of Contents for SPARROW W500
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