Sound Meter - Decibel Meter

以分貝為單位測量聲音環境噪聲（dB）

Sound Meter - Decibel Meter, Noise Meter, sound level meter, decibel(dB), noise meter, sound pressure level(SPL), shows a decibel values by measuring the noise environmental noise, displayed measured decibel values in various forms.

Sound Meter - Decibel Meter, Noise Meter Key Features:

-Indicates decibel by gauge

-Display the current noise reference

-Display min/avg/max decibel values

-Display decibel by graph

-Calibrate the decibel for each devices

Levels of Noise In decibels (dB) according to American Academy of Audiology

140 dB - Gun shots, fireworks

130 dB - Jackhammers, Ambulance

120 dB - Jet planes taking off

110 dB - Concerts, Car horns

100 dB - Snowmobiles

90 dB - Power tools

80 dB - Alarm clocks

70 dB - Traffic, vacuums

60 dB - Normal conversation

50 dB - Moderate rainfall

40 dB - Quiet library

30 dB - Whisper

20 dB - Leaves rusting

10 dB – Breathing