http://www.stormcam.org/handheld-weather/
Weather with handheld pressure?
I have a handheld combinaton barometer / altimeter / watches / etc. When I set my altitude than it is (214 elevation) changes Barometer conversly and when I set the current barometric pressure, my altitude change itself. Why and how do I approach solving my problem?
Barometer function by measuring the pressure Air overling. Altimeters are set from the air pressure before takeoff, so that the altimieter is not defined by the height it is fixed by air pressure at a given height. So you need a very accurate barometer to determine your altitude. Time has nothing to do with it. You take your waist apply air pressure during takeoff. You must set the first pressure. Your size is constant, but pressure changes forever. you must adjust the height and begin to pressure and it will automatically compensate.
Midland HH50 W/X Civil Pocket Weather Alert Radio