Sound Meter Pro is a handy application that lets you measure the level of sound and take the results as a reference. The application has been designed to be a useful tool for Android users. It is an audio-based sensor, and its results are displayed in dB (decibels). This means that you can trust the results with the standard noise level (40-70 dB). It is compatible with smartphones and tablets. It also has a built-in sensor to detect vibrations that allows it to detect earthquakes. It is a handy tool that is easy to use, and it has a user-friendly interface.