Air density is calculated with the CIPM 91 method. Open and free code. Inputs to the calculation are pressure, temperature and relative humidity. Output are Air density, Vapor pressure, Compressibility Factor, Viscosity and Speed of Sound. You find the algorithm details in this link. Main reference site. Free source online available.
The download of Air Properties is safe and secure. This application is created by BasicAirData and its category is Tools. The app has the overall rating 4.8 on Google Play.
The developer released a new version of this application on Jan 24, 2015 and over 1K users downloaded and set up Air Properties. Get the installer of Air Properties 1.1.3 free of charge and have a look at users' reviews on Droid Informer. The app works flawlessly on Android 2.2 and above.
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