dB Decibel Meter - sound level measurement tool 对比 Smart Sentry 的使用情况和统计数据

dB Meter in your pocket. Sound level meter with exclusive accuracy of measurements. Calibrated with professional high-precision decibel meter. Please note that dB Meter - lux decibel measurement tool app is not a replacement for a professional device and should be used for private purposes only. It provides a simple way to measure audio volumes in your environment. Features: - Full support for iPhone 6s and iPhone 6s Plus. - Unique and attractive design. - Exclusive simplicity and convenience of use . - Highly accurate measurements. Please note the maximum measurement level in the app is limited to 120 dB. Have any questions or suggestions? Write to us: support@lspapps.com DB Chart 150-160 dB = Eardrum rupture 140 decibel = Aircraft carrier deck. 130 dB = Jet take-off (100 meters), gun blast at close range. 120 dB= Human pain threshold, loud rock concert. 110 decibel = Serious hearing damage if sustained for more than 1 hour. 100 dB = Serious hearing damage if sustained for more than 8 hours. 90 decibel = Likely hearing damage if sustained for more than 8 hours. 80 decibel = Potential but unlikely hearing damage if sustained for more than 8 hours. 70 dB = Just annoying, but probably safe. 60 dB= Typical conversational volume. 50 dB = A quiet, library conversation. 40 decibel = A whisper. 30 dB= Barely audible sound. 20 decibel= Threshold of human hearing.