Reading Barometric Pressure Differential Pointer

Reading Barometric Pressure Differential Pointer

Barometric Pressure Differential Pointer


This pointer indicates the relative difference between the most recent barometric pressure reading indicated on the barometric pressure graph (page E-62), and the current barometric pressure value displayed in the Barometer/Thermometer Mode (page E-61).

Reading Barometric Pressure Differential Pointer

Pressure differential is indicated in the range of ±10 hPa, in 1-hPa units.
  • The nearby illustration, for example, shows what the pointer would indicate when the calculated pressure differential is approximately – 5 hPa (approximately – 0.15 inHg).
  • Barometric pressure is calculated and displayed using hPa as the standard. The barometric pressure differential also can be read in inHg units as shown in the illustration (1 hPa = 0.03 inHg).