Sound Level Monitor
McLennan Sound Monitoring, Inc
McLennan Sound Monitoring, Inc. offers two unique single-ranged instruments. For high sensitivity areas 41dBA – 101dBA range, and a standard range of 61dBA – 121dBA. A whisper from two feet will activate the 41dBA LED. Normal human conversation ranges from 60 – 80 dBA. Low level talk from two feet will activate the 61dBA LED.