My attempt to make a barometer that displays the barometric pressure at your location. This app is approximate, valid only at low altitudes, because you can not use log and exp functions in an app. You can also simulate a barometer by setting your reference altitude to zero in the standard Ambit. But it would be really nice and more convenient if you could have a barometer with all three key parameters available at the same time: altitude, atmospheric pressure and QNH (sea level pressure). On my wish list, but not implemented yet, is an altitude trim term to correct for air humidity, air temperature and sensor errors. Trim can be done by setting altitude and QNH or barometric pressure simultaneously and independently. If both pressure and altitude are known, the trim coefficient can be determined. Currently the trim is fixed at factory calibration. I hope you enjoy this App, despite it's inaccuracy! Tom