Extech Instruments 407703 Sound Level Meter

Extech Instruments HD600 Datalogging Sound Level Meter

Extech 407730 Digital Sound Level Meter, 40 to 130dB

Extech 407740 Digital Sound Level Meter dB Noise Tester

Extech Instruments 407736 Sound Level Meter 35-130 dB +/-1.5dB w/ Case

Extech 407750 Type 2 Sound Level Meter 30-130dB Backlit RS232 & Case

Extech Instruments 407730 Sound Level Meter dB Meter 30-130 dB ±2.0 dB

Extech Sound Level Meter-Case,Manual