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Noise Dosimeter NIOSH & OSHA
Tool Box: goniometer & ruler
精准测量工具箱
White & Pink Noise
分贝仪 (专业版)
Car Decibel Sound Level Meter
Guitar & Ukulele Tuner
Light Meter - measure luminosity in lux, fc, lumen
Leo the Cat - Fun Stickers
dB Decibel Meter
