Barometric Pressure Readings
Barometric pressure refers to the pressure exerted by the atmosphere at a given altitude. It may be expressed in either millibars (mb)/hectopascals (hPa), or inches of mercury (inHg). A rising or falling barometric pressure reading indicates the likelihood of fair or poor weather conditions.
-A high or risingbarometric pressureindicatesfair weather conditions.
-A low or fallingbarometricpressureindicates poor weather conditions.
Barometric Pressure Trend
Barometric Pressure Graph
Press History to see Barometric
Pressure over last 12 hours
History Hour Icon
Press History until Hour Icon is ”0”. Current readings return.
Arrow icons above the barometric pres- sure readings indicate if pressure is rising, falling, or steady.
The bar graph illustrates the current baro- metric pressure readings.
Barometric14 Pressure History
Press the “History” button on the back of the unit to see the barometric pressure
readings for the past 12 hours. The 
icon indicates which hour history is dis- played (1 hour ago, 2 hours ago, etc.).
The bar graph illustrates the pressure his- tory information.
To return to the current barometric pres- sure readings, press “History” until the hour icon is “0”.
Please note: until there are 12 hours of his- tory readings, some history hours will show dashes.
