$231.84

Professional Noise Decibel Calibration Gauge Sound Level Calibrator 94 dB 114 dB

$349.99

Rycom Instruments Inc. 6021A Selective Levelmeter

$9.95

Condenser Microphone Type 6-111693 For Sound Level Testing

$9845

Audio Precision APx515 Audio Analyzer - B Series -

$517

1PCS Bruel & Kjaer TYPE4231 Sound Meter Calibrator Excellent Condition

$24.5

Sound Power Measurements Hewlett Packard Application Note 1230

$19.99

Protmex PT6708 Sound Level Meter Digital Sound Level Meter Reader Measurement...

$120

Sounds Level Meter Reed Instruments

$24.99

Sound Level Meter Digital Noise Test Decibel Measurement 30-130DB AC DC Analog

$171.5

PC218 Phase Polarity Tester Audio Speaker Microphone Sound Phase Detector+Shell

$269.99

Quest Technologies 210 Sound Level Meter Nice Condition Fully Tested

$145.99

B&W Vintage Distortion Meter Model #410 Bristol, Pa