Name: Pressure tendency barometer.
Rating: 4.3 (17 reviews)
Author: DJPejs

Pressure tendency barometer:

*  Shows current atmospheric pressure at sea level.
*  Shows latest pressure tendency using LMS algorithm.
*  Shows pressure history graph with min and max pressure.
*  Uses low pressure warning colours for current and historic pressure.
*  Calibration option with target pressure (sea level).
*  Supports hPa and inHg.
*  Supports the watch's barometer time plot resolution. (NOTE OF AUGUST13TH: GARMIN SW RELEASE 5.1 INTRODUCED A STRANGE LIMITATION  SUCH THAT ONLY 6 HOURS OF PRESSURE HISTORY IS AVAILABLE FOR THE WIDGET NO MATTER WHAT YOUR SETTINGS ARE. HOPEFULLY THIS WILL BE CHANGED IN A FUTURE GARMIN PATCH) 

Before calibrating the barometer make sure that the altimeter is calibrated to the correct altitude and that the watch has the approx. temperature at wich the barometer is going to be used (off or on wrist). Wait a minute to make any changes reflect in the current barometer reading. Then calibrate. 

Press start/select for calibration or units settings.

The time plot is set using the watch's general barometer time plot settings: Settings - Sensores & Accesories - Barometer - Plot. (NOTE OF AUGUST13TH: NOT POSSIBLE SINCE GARMIN SW RELEASE 5.1)