Photo 1 of Chaoos Decibel Meter Wall Mounted Hanging and Desktop Sound Level Meter, 11 inch LED Large Display Noise Meter Decibel Temperature Humidity Meter with Alarm Icons Indicator for Classroom,Home, Studio

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Photo 1 of Chaoos Decibel Meter Wall Mounted Hanging and Desktop Sound Level Meter, 11 inch LED Large Display Noise Meter Decibel Temperature Humidity Meter with Alarm Icons Indicator for Classroom,Home, StudioPhoto 2 of Chaoos Decibel Meter Wall Mounted Hanging and Desktop Sound Level Meter, 11 inch LED Large Display Noise Meter Decibel Temperature Humidity Meter with Alarm Icons Indicator for Classroom,Home, Studio