Galaxy Audio CM-170 Sound Pressure Level Meter | Audio Level Meter
Sound Pressure Level Meter by RadioShack
Amazon.com: Decibel Meter-Digital Sound Level Tester, Sound Pressure Level( SPL) Reader Monitor 30~130dBA/C Noise Intensity, Volume Decibels Gauge with Bar Graph Max Hold (ANNMETER AN-882A) : Industrial & Scientific
Sound level meter - Wikipedia
Protmex Sound Level Meter, Dual Mode db Meter Decibel Meter Noise Level Meter 30-130dB Measure with Fast/Slow Selection, Backlight, Max and Data Hold Function, A/C Mode PT6708(Batteries Included): Amazon.com: Industrial & Scientific
Amazon.com: Sound Level Meter
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Amazon.com: Decibel Meter-Digital Sound Level Tester, Sound Pressure Level( SPL) Reader Monitor 30~130dBA/C Noise Intensity, Volume Decibels Gauge with Bar Graph Max Hold (ANNMETER AN-882A) : Industrial & Scientific