100% FREE, NO LOCKED FEATURES!

SMALL SIZE!

Show the reference value for each sound level!

You could check the current noise level in order to understand, is it a good environment for study or your baby.

Intuitive and easy to use, will give you an overview of each sound level.

green: it's not harmful
yellow: long exposure to such environment would harm you
red: it is harmful, you should avoid such environments at all!

** Attention **
Microphones in most devices are aligned to the human voice. The maximum values may be limited by the device. Very loud sounds(over ~110 dB) may not be recognized by some devices. Please use it just as a reference tool. If you need more accurate dB values, please use the actual sound level meters for that.