Photo 1 of SWAREY Digital Decibel Meter with DIY Voice Warning Function, Wall Hanging Sound Level Meter 35dB to 135dB with Alarm Quiet Please, Sound Level Meter for Schools Hospitals Temples Libraries Theaters

Double tap image to zoom

Photo 1 of SWAREY Digital Decibel Meter with DIY Voice Warning Function, Wall Hanging Sound Level Meter 35dB to 135dB with Alarm Quiet Please, Sound Level Meter for Schools Hospitals Temples Libraries TheatersPhoto 2 of SWAREY Digital Decibel Meter with DIY Voice Warning Function, Wall Hanging Sound Level Meter 35dB to 135dB with Alarm Quiet Please, Sound Level Meter for Schools Hospitals Temples Libraries Theaters