*TC* SCOTT INSTRUMENT LABORATORIES TYPE 451 SOUND LEVEL METER ANSI S3A TESTED

H H Scott type 450-B Sound Level meter with case & strap UNTESTED

*TC* SCOTT INSTRUMENT LABORATORIES TYPE 451 SOUND LEVEL METER ANSI S3A (KRS89)

Scott Instruments 451 SOUND LEVEL METER With Case

VETOUCH Decibel Meter Plug-in Sound Level Reader 30-130dBA

HH Scott Sound Level Meter 450b

Scott Instrument Laboratories - Type 451 Sound Level Meter - Schallpegelmesser