Sound Level Meter Pro shows a decibel values ​​by measure the noisy environment, with this tool, you can easily measure and display dB values ​​information. You can experience tidy line graph design with high frame by this smart Sound Meter and Noise Detector app. The best helper to Detect Noise and Sound Meter.

The noise level meter or sound pressure level Meter (SPL meter) use the smartphone or tablet microphone to measure environmental noise in decibels (dB). The decibel (dB) value of this noise level meter or sound meter might be vary compare with an actual Sound Meter (dB Meter). You can now easily perform a noise measurement with your smart phone.

OUTSTANDING FEATURES:
Sound Meter Pro version is a Sound Level Meter, the Decibel Meter (dB Meter), Noise Meter, sound pressure level meter (SPL meter). Sound Meter Pro is FREE because it uses your Android's microphone physical to measure Levels of Noise or Sound pressure levels and displays measured data in dB (decibels) and displays the noise data on easy to read and understand by real-time line graph chart.

Sound Meter Pro Features:
- Measure environmental noise
- Display real time Decibel value by graph line, you can easy to read and understand
- Display min / avg / max decibel values
- Display Elapsed time of decibel
- Support calibrate the decibel and show measurement histories
- Alert the warning for high decibel
Measure different noise level Indicate decibel by gauge chart
- Easily to play and pause the Noise test or Sound test (decibel meter or dB meter)

As you knew that, A loud noise will be harmful for both your physical and metal health, especial your ears. So you should avoid exposure to those noisy environment to protect your ears and your health. Let try to download and use our Sound Meter: the Noise Meter Detector to measure environmental noise and protect you and your family's health.

Here is the example of Sound Meter or Decibel Meter (dB meter) level of noise:
140 decibels: Gun Shots
130 decibels: Ambulance
120 decibels: Thunder
110 decibels: Concerts
100 decibels: Subway Train
90 decibel: Motorcycle
80 decibel: Alarm Clocks
70 decibels: Vacuums, Traffic
60 decibels: Conversation
50 decibels: Quiet Room
40dB: Quiet Park
30dB: Whisper
20dB: Rustling Leaves
10dB: Breathing

NOTE: Permission Requirement:
1) android.permission.INTERNET: the permission is required to access Internet.
2) android.permission.ACCESS_NETWORK_STATE: the permission is required to access network.
3) android.permission.RECORD_AUDIO: the permission is required to access sound recording.