$450

Bruel & Kjaer TYPE4231 Sound Meter Calibrator Excellent Condition B&K TYPE4231

$108.32

LANDTEK SL-5816 Microprocessor Sound Noise Level Meter Decibel Monitor Tester

$26.67

45 Mm Decibel Meter for Noise Measurement Sound Level Tester Indicator

$75.5

RGB Retro Polar Atmosphere Light Audio UV Level Meter Rotatable UV Meter pe66

$500

RION EC-02S Preamplifiers for Vibration Meter Used Excellent+++ Condition

$98

Extech Instruments 407736 Digital Sound Level Meter w/ Case, Accessories Works

$527.64

Noise Spectrum Analyzer Digital Sound Level Meter Level Range 25dB~130dB (A)

$167.49

STEELMAN 06600 ChassisEAR Electronic Squeak 13.7 x 10.2 x 5.5 inches, Black

$43.79

ProLab Scientific Sound Level Meter w/ Case and Manual

$12.14

Water Alarm Leak Detector, Wireless Tank Level Monitor with 100DB Sound1487-

$19.07

Portable Sound Level Meter Decibel Monitor 30-130dB for Industrial Environmental

$299

Bruel & Kjaer 4940 ½" Free Field Microphone