Decibel Meter pro.

You can carry the decibel meter anytime，anywhere to provide you with noise detection reference,and it will providing detection of location information.It's easy to use. Features: - Full support for iPhone 7/6/5/4. - Unique and simplicity design. - Highly accurate measurements. - Provide effective decibel reference and noise damage - record the location of the test, keep the history Please note that although we have provided as accurate as possible the measurement method. But this section of the decibel detector can not completely replace the professional equipment, only for private use.